56057232 has 160 divisors (see below), whose sum is σ = 187130880. Its totient is φ = 14031360.

The previous prime is 56057219. The next prime is 56057293. The reversal of 56057232 is 23275065.

It is a self number, because there is not a number n which added to its sum of digits gives 56057232.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106923 + ... + 107445.

It is an arithmetic number, because the mean of its divisors is an integer number (1169568).

Almost surely, 2^56057232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56057232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93565440).

56057232 is an abundant number, since it is smaller than the sum of its proper divisors (131073648).

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

56057232 is a wasteful number, since it uses less digits than its factorization.

56057232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581 (or 575 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 56057232 is about 7487.1377708708. The cubic root of 56057232 is about 382.7165265570.

The spelling of 56057232 in words is "fifty-six million, fifty-seven thousand, two hundred thirty-two".