56910931 has 8 divisors (see below), whose sum is σ = 70953984. Its totient is φ = 44346120.

The previous prime is 56910907. The next prime is 56910941. The reversal of 56910931 is 13901965.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56910931 - 2¹¹ = 56908883 is a prime.

It is a super-2 number, since 2×56910931² = 6477708134573522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56910941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369475 + ... + 369628.

It is an arithmetic number, because the mean of its divisors is an integer number (8869248).

Almost surely, 2^56910931 is an apocalyptic number.

56910931 is a deficient number, since it is larger than the sum of its proper divisors (14043053).

56910931 is a wasteful number, since it uses less digits than its factorization.

56910931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739121.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 56910931 is about 7543.9333904801. The cubic root of 56910931 is about 384.6495512284.

The spelling of 56910931 in words is "fifty-six million, nine hundred ten thousand, nine hundred thirty-one".