56831992 has 64 divisors (see below), whose sum is σ = 125706240. Its totient is φ = 23587200.

The previous prime is 56831987. The next prime is 56832019. The reversal of 56831992 is 29913865.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433767 + ... + 433897.

It is an arithmetic number, because the mean of its divisors is an integer number (1964160).

Almost surely, 2^56831992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56831992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62853120).

56831992 is an abundant number, since it is smaller than the sum of its proper divisors (68874248).

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

56831992 is a wasteful number, since it uses less digits than its factorization.

56831992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 328 counting only the distinct ones).

The product of its digits is 116640, while the sum is 43.

The square root of 56831992 is about 7538.6996226140. The cubic root of 56831992 is about 384.4716246563.

The spelling of 56831992 in words is "fifty-six million, eight hundred thirty-one thousand, nine hundred ninety-two".