56809560 has 64 divisors (see below), whose sum is σ = 171007200. Its totient is φ = 15097856.

The previous prime is 56809553. The next prime is 56809589. The reversal of 56809560 is 6590865.

It is a super-2 number, since 2×56809560² = 6454652214787200, which contains 22 as substring.

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, 46072 + ... + 47288.

Almost surely, 2^56809560 is an apocalyptic number.

It is an amenable number.

56809560 is an abundant number, since it is smaller than the sum of its proper divisors (114197640).

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

56809560 is a wasteful number, since it uses less digits than its factorization.

56809560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620 (or 1616 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 56809560 is about 7537.2116860282. The cubic root of 56809560 is about 384.4210334186.

The spelling of 56809560 in words is "fifty-six million, eight hundred nine thousand, five hundred sixty".