56732920 has 32 divisors (see below), whose sum is σ = 129560400. Its totient is φ = 22353408.

The previous prime is 56732911. The next prime is 56732941. The reversal of 56732920 is 2923765.

56732920 = 233² + 234² + ... + 567².

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 7 ways as a sum of consecutive naturals, for example, 7905 + ... + 13264.

Almost surely, 2^56732920 is an apocalyptic number.

It is an amenable number.

56732920 is an abundant number, since it is smaller than the sum of its proper divisors (72827480).

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

56732920 is a wasteful number, since it uses less digits than its factorization.

56732920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21247 (or 21243 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 56732920 is about 7532.1258619330. The cubic root of 56732920 is about 384.2480854928.

The spelling of 56732920 in words is "fifty-six million, seven hundred thirty-two thousand, nine hundred twenty".