56569536 has 112 divisors (see below), whose sum is σ = 175158400. Its totient is φ = 17853696.

The previous prime is 56569519. The next prime is 56569543. The reversal of 56569536 is 63596565.

56569536 is a `hidden beast` number, since 56 + 5 + 69 + 536 = 666.

It is a super-2 number, since 2×56569536² = 6400224806510592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56569491 and 56569500.

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, 31971 + ... + 33693.

Almost surely, 2^56569536 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 56569536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87579200).

56569536 is an abundant number, since it is smaller than the sum of its proper divisors (118588864).

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

56569536 is a wasteful number, since it uses less digits than its factorization.

56569536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763 (or 1747 counting only the distinct ones).

The product of its digits is 729000, while the sum is 45.

The square root of 56569536 is about 7521.2722328074. The cubic root of 56569536 is about 383.8788680432.

The spelling of 56569536 in words is "fifty-six million, five hundred sixty-nine thousand, five hundred thirty-six".