51
After fifty, before
Fifty-one, the number between fifty and fifty-two.
In cards, 51 is a rummy game where players try to reach that point total.
Area code 51 covers parts of Peru.
The term appears in Area 51, the classified U.S.
Air Force facility in Nevada associated with secrecy and UFO conspiracy theories.
number
Number after fifty
- integerNumber lacking fractions
- numeralSymbol denoting quantity
- digitSingle numeric character
- quantityMeasurable amount present
count · sum · total · arithmetic · mathematics · calculation · cardinal · half-century
prime
Unable to be divided
- factorizationDecomposing into multiplicative parts
- oddUnusual or not even
- integerNumber lacking fractions
- cryptographyScience of secure messaging
fifty-one
Number after fifty
quantity · count · sum · total · arithmetic · mathematics · calculation · cardinal · half-century · score
indivisible
Unable to be divided
- factorizationDecomposing into multiplicative parts
- oddUnusual or not even
- integerNumber lacking fractions
cryptography · divisibility · mathematical · unique · fundamental
- Area 51Classified Nevada test facility
- 51 percentSmallest controlling stake
- P-51 MustangAmerican WWII fighter aircraft