56522720 has 48 divisors (see below), whose sum is σ = 140570640. Its totient is φ = 21417984.

The previous prime is 56522699. The next prime is 56522737. The reversal of 56522720 is 2722565.

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, 6257 + ... + 12336.

It is an arithmetic number, because the mean of its divisors is an integer number (2928555).

Almost surely, 2^56522720 is an apocalyptic number.

It is an amenable number.

56522720 is an abundant number, since it is smaller than the sum of its proper divisors (84047920).

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

56522720 is a wasteful number, since it uses less digits than its factorization.

56522720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18627 (or 18619 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 56522720 is about 7518.1593492024. The cubic root of 56522720 is about 383.7729415775.

The spelling of 56522720 in words is "fifty-six million, five hundred twenty-two thousand, seven hundred twenty".