50979885 has 32 divisors (see below), whose sum is σ = 90132480. Its totient is φ = 24398400.

The previous prime is 50979881. The next prime is 50979893. The reversal of 50979885 is 58897905.

It is not a de Polignac number, because 50979885 - 2² = 50979881 is a prime.

It is a super-2 number, since 2×50979885² = 5197897349226450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50979881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11080 + ... + 14990.

It is an arithmetic number, because the mean of its divisors is an integer number (2816640).

Almost surely, 2^50979885 is an apocalyptic number.

50979885 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50979885 is a deficient number, since it is larger than the sum of its proper divisors (39152595).

50979885 is a wasteful number, since it uses less digits than its factorization.

50979885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009.

The product of its (nonzero) digits is 907200, while the sum is 51.

The square root of 50979885 is about 7140.0199579553. The cubic root of 50979885 is about 370.7942155711.

The spelling of 50979885 in words is "fifty million, nine hundred seventy-nine thousand, eight hundred eighty-five".