| Nominal | 50991 |
| Cardinal | fifty thousand nine hundred ninety-one |
Cardinal fifty thousand nine hundred ninety-one | |
| Ordinal | 50,991st |
| Number of digits | 5 |
| Sum of digits | 24 |
| Product of digits | 0 |
| Number parity | Odd |
| Prime factorization | 3 x 23 x 739 |
| Prime factors | 3, 23, 739 |
| Number of distinct prime factors ω(n) | 3 |
| Total number of prime factors Ω(n) | 3 |
| Sum of prime factors | 765 |
| Product of prime factors | 50991 |
| Is 50991 a prime number? | No |
| Is 50991 a semiprime number? | No |
| Is 50991 a Chen prime number? | No |
| Is 50991 a Mersenne prime number? | No |
| Is 50991 a Catalan number? | No |
| Is 50991 a Fibonacci number? | No |
| Is 50991 a Idoneal number? | No |
| Square of 50991 (n2) | 2600082081 |
| Cube of 50991 (n3) | 132580785392271 |
| Square root of 50991 | 225.81186859862 |
| Natural Logarithm (ln) of 50991 | 10.839404425545 |
| Decimal Logarithm (log) of 50991 | 4.7074935291321 |
| Sine of 50991 | 0.18921281267613 |
| Cosecant of 50991 | 5.2850543568192 |
| Cosine of 50991 | -0.98193610358271 |
| Secant of 50991 | -1.0183962035324 |
| Tangent of 50991 | -0.19269361008905 |
| Cotangent of 50991 | -5.1895856823579 |
| The spelling of 50991 in words is "fifty thousand nine hundred ninety-one", meaning that: |
| 50991 is not an aban number (as it contains the letter a) |
| 50991 is not an eban number (as it contains the letter e) |
| 50991 is not an iban number (as it contains the letter i) |
| 50991 is not an oban number (as it contains the letter o) |
| 50991 is not a tban number (as it contains the letter t) |
| 50991 is not an uban number (as it contains the letter u) |
| Bengali numerals | ৫০৯৯১ |
| Eastern Arabic numerals | ٥٠٬٩٩١ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓂭𓂭𓂭𓂭𓍪𓎎𓏺 |
| Khmer numerals | ៥០៩៩១ |
| Japanese numerals | 五万九百九十一 |
| Roman numerals | n/a |
| Thai numerals | ๕๐๙๙๑ |
| Arabic | خمسون ألف و تسعة مائة و واحد و تسعون |
| Croatian | pedeset tisuća devetsto devedeset i jedan |
| Czech | padesát tisíc devět set devadesát jeden |
| Danish | halvtreds tusinde ni hundrede en og halvfems |
| Dutch | vijftigduizend negenhonderdéénennegentig |
| Estonian | akpe blaatɔ̃ alafa asieke blaasieke vɔ ɖekɛ |
| Faroese | fimmti tusin og níggjuhundraðognítiein |
| Filipino | limáng pû libó’t siyám na daán at siyám na pû’t isá |
| Finnish | viisikymmentätuhattayhdeksänsataayhdeksänkymmentäyksi |
| French | cinquante mille neuf cent quatre-vingt-onze |
| Greek | πενήντα χίλιάδες εννιακόσια εννενήντα ένα |
| German | fünfzigtausendneunhunderteinundneunzig |
| Hebrew | חמישים אלף תשע מאות תשעים ואחת |
| Hindi | पचास हज़ार नौ सौ इक्यानबे |
| Hungarian | ötvenezerkilencszázkilencvenegy |
| Icelandic | fimmtíu þúsund og níuhundrað og níutíu og einn |
| Indonesian | lima puluh ribu sembilan ratus sembilan puluh satu |
| Italian | cinquantamilanovecentonovantuno |
| Japanese | 五万九百九十一 |
| Korean | 오만 구백구십일 |
| Latvian | piecdesmit tūkstoši deviņsimt deviņdesmit viens |
| Lithuanian | penkiasdešimt tūkstančių devyni šimtai devyniasdešimt vienas |
| Norwegian | femti tusen ni hundre og nittién |
| Persian | پنجاه هزار و نهصد و نود و یک |
| Polish | pięćdziesiąt tysięcy dziewięćset dziewięćdziesiąt jeden |
| Portuguese | cinquenta mil novecentos e noventa e um |
| Romanian | cincizeci mii nouă sute nouăzeci şi unu |
| Russian | пятьдесят тысяч девятьсот девяносто один |
| Serbian | педесет хиљада деветсто деведесет и један |
| Slovak | päťdesiat tisíc deväťsto deväťdesiatjeden |
| Slovene | petdeset tisuću devetsto devetdeset ena |
| Spanish | cincuenta mil novecientos noventa y uno |
| Swahili | elfu hamsini, mia tisa na tisini na moja |
| Swedish | femtiotusenniohundranittioen |
| Thai | ห้าหมื่นเก้าร้อยเก้าสิบเอ็ด |
| Turkish | elli bin dokuz yüz doksan bir |
| Ukrainian | пʼятдесят тисяч девʼятсот девʼяносто один |
| Vietnamese | năm mươi nghìn chín trăm chín mươi mốt |
| Number 50991 reversed | 19905 | |
| Unicode Character | U+C72F | 윯 |
| Unix Timestamp | Thu, 01 Jan 1970 14:09:51 +0000 | |