56388560 has 20 divisors (see below), whose sum is σ = 131103588. Its totient is φ = 22555392.

The previous prime is 56388533. The next prime is 56388581. The reversal of 56388560 is 6588365.

It can be written as a sum of positive squares in 2 ways, for example, as 19324816 + 37063744 = 4396^2 + 6088^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent 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, 352349 + ... + 352508.

Almost surely, 2^56388560 is an apocalyptic number.

It is an amenable number.

56388560 is an abundant number, since it is smaller than the sum of its proper divisors (74715028).

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

56388560 is a wasteful number, since it uses less digits than its factorization.

56388560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704870 (or 704864 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 56388560 is about 7509.2316517737. The cubic root of 56388560 is about 383.4690651455.

The spelling of 56388560 in words is "fifty-six million, three hundred eighty-eight thousand, five hundred sixty".