56722760 has 32 divisors (see below), whose sum is σ = 128208960. Its totient is φ = 22585536.

The previous prime is 56722759. The next prime is 56722789. The reversal of 56722760 is 6722765.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 56722760.

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, 5957 + ... + 12203.

It is an arithmetic number, because the mean of its divisors is an integer number (4006530).

Almost surely, 2^56722760 is an apocalyptic number.

It is an amenable number.

56722760 is an abundant number, since it is smaller than the sum of its proper divisors (71486200).

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

56722760 is a wasteful number, since it uses less digits than its factorization.

56722760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6485 (or 6481 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 56722760 is about 7531.4513873489. The cubic root of 56722760 is about 384.2251464677.

The spelling of 56722760 in words is "fifty-six million, seven hundred twenty-two thousand, seven hundred sixty".