56667256 has 32 divisors (see below), whose sum is σ = 116138880. Its totient is φ = 25804800.

The previous prime is 56667251. The next prime is 56667257. The reversal of 56667256 is 65276665.

It is a super-2 number, since 2×56667256² = 6422355805139072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56667251) 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, 2505 + ... + 10936.

It is an arithmetic number, because the mean of its divisors is an integer number (3629340).

Almost surely, 2^56667256 is an apocalyptic number.

It is an amenable number.

56667256 is an abundant number, since it is smaller than the sum of its proper divisors (59471624).

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

56667256 is a wasteful number, since it uses less digits than its factorization.

56667256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13495 (or 13491 counting only the distinct ones).

The product of its digits is 453600, while the sum is 43.

The square root of 56667256 is about 7527.7656711670. The cubic root of 56667256 is about 384.0997823737.

The spelling of 56667256 in words is "fifty-six million, six hundred sixty-seven thousand, two hundred fifty-six".