56533656 has 32 divisors (see below), whose sum is σ = 141755760. Its totient is φ = 18788352.

The previous prime is 56533651. The next prime is 56533657. The reversal of 56533656 is 65633565.

56533656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56533651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5136 + ... + 11808.

Almost surely, 2^56533656 is an apocalyptic number.

It is an amenable number.

56533656 is an abundant number, since it is smaller than the sum of its proper divisors (85222104).

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

56533656 is a wasteful number, since it uses less digits than its factorization.

56533656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7035 (or 7031 counting only the distinct ones).

The product of its digits is 243000, while the sum is 39.

The square root of 56533656 is about 7518.8866197064. The cubic root of 56533656 is about 383.7976907417.

Subtracting 56533656 from its reverse (65633565), we obtain a palindrome (9099909).

The spelling of 56533656 in words is "fifty-six million, five hundred thirty-three thousand, six hundred fifty-six".