56564256 has 96 divisors (see below), whose sum is σ = 173916288. Its totient is φ = 15759360.

The previous prime is 56564227. The next prime is 56564257. The reversal of 56564256 is 65246565.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (56564257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26526 + ... + 28578.

It is an arithmetic number, because the mean of its divisors is an integer number (1811628).

Almost surely, 2^56564256 is an apocalyptic number.

56564256 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56564256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86958144).

56564256 is an abundant number, since it is smaller than the sum of its proper divisors (117352032).

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

56564256 is a wasteful number, since it uses less digits than its factorization.

56564256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114 (or 2106 counting only the distinct ones).

The product of its digits is 216000, while the sum is 39.

The square root of 56564256 is about 7520.9212201698. The cubic root of 56564256 is about 383.8669243739.

The spelling of 56564256 in words is "fifty-six million, five hundred sixty-four thousand, two hundred fifty-six".