56931768 has 32 divisors (see below), whose sum is σ = 158144400. Its totient is φ = 18977184.

The previous prime is 56931767. The next prime is 56931829. The reversal of 56931768 is 86713965.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56931767) 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, 131571 + ... + 132002.

Almost surely, 2^56931768 is an apocalyptic number.

It is an amenable number.

56931768 is an abundant number, since it is smaller than the sum of its proper divisors (101212632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56931768 is a wasteful number, since it uses less digits than its factorization.

56931768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263588 (or 263578 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 56931768 is about 7545.3143075686. The cubic root of 56931768 is about 384.6964898661.

The spelling of 56931768 in words is "fifty-six million, nine hundred thirty-one thousand, seven hundred sixty-eight".