56531288 has 32 divisors (see below), whose sum is σ = 115938000. Its totient is φ = 25628160.

The previous prime is 56531281. The next prime is 56531297. The reversal of 56531288 is 88213565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56531281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49508 + ... + 50636.

Almost surely, 2^56531288 is an apocalyptic number.

It is an amenable number.

56531288 is an abundant number, since it is smaller than the sum of its proper divisors (59406712).

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

56531288 is a wasteful number, since it uses less digits than its factorization.

56531288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715 (or 1711 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The square root of 56531288 is about 7518.7291479345. The cubic root of 56531288 is about 383.7923320127.

The spelling of 56531288 in words is "fifty-six million, five hundred thirty-one thousand, two hundred eighty-eight".