50999959 has 2 divisors, whose sum is σ = 50999960. Its totient is φ = 50999958.

The previous prime is 50999891. The next prime is 50999989. The reversal of 50999959 is 95999905.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50999959 - 2⁷ = 50999831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50999989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25499979 + 25499980.

It is an arithmetic number, because the mean of its divisors is an integer number (25499980).

Almost surely, 2^50999959 is an apocalyptic number.

50999959 is a deficient number, since it is larger than the sum of its proper divisors (1).

50999959 is an equidigital number, since it uses as much as digits as its factorization.

50999959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1476225, while the sum is 55.

The square root of 50999959 is about 7141.4255579681. The cubic root of 50999959 is about 370.8428775504.

The spelling of 50999959 in words is "fifty million, nine hundred ninety-nine thousand, nine hundred fifty-nine".