56730456 has 40 divisors (see below), whose sum is σ = 158899620. Its totient is φ = 18909936.

The previous prime is 56730449. The next prime is 56730461. The reversal of 56730456 is 65403765.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 56730456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 43126 + ... + 44421.

Almost surely, 2^56730456 is an apocalyptic number.

It is an amenable number.

56730456 is an abundant number, since it is smaller than the sum of its proper divisors (102169164).

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

56730456 is a wasteful number, since it uses less digits than its factorization.

56730456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87565 (or 87552 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 56730456 is about 7531.9622941170. The cubic root of 56730456 is about 384.2425225792.

The spelling of 56730456 in words is "fifty-six million, seven hundred thirty thousand, four hundred fifty-six".