56931788 has 12 divisors (see below), whose sum is σ = 101264352. Its totient is φ = 27999120.

The previous prime is 56931767. The next prime is 56931829. The reversal of 56931788 is 88713965.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116420 + ... + 116907.

It is an arithmetic number, because the mean of its divisors is an integer number (8438696).

Almost surely, 2^56931788 is an apocalyptic number.

It is an amenable number.

56931788 is a deficient number, since it is larger than the sum of its proper divisors (44332564).

56931788 is a wasteful number, since it uses less digits than its factorization.

56931788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233392 (or 233390 counting only the distinct ones).

The product of its digits is 362880, while the sum is 47.

The square root of 56931788 is about 7545.3156328944. The cubic root of 56931788 is about 384.6965349138.

The spelling of 56931788 in words is "fifty-six million, nine hundred thirty-one thousand, seven hundred eighty-eight".