56579904 has 112 divisors (see below), whose sum is σ = 168249600. Its totient is φ = 18643968.

The previous prime is 56579849. The next prime is 56579911. The reversal of 56579904 is 40997565.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 56579904.

It is a congruent number.

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, 236617 + ... + 236855.

Almost surely, 2^56579904 is an apocalyptic number.

56579904 is a gapful number since it is divisible by the number (54) 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 56579904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84124800).

56579904 is an abundant number, since it is smaller than the sum of its proper divisors (111669696).

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

56579904 is a wasteful number, since it uses less digits than its factorization.

56579904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 56579904 is about 7521.9614463250. The cubic root of 56579904 is about 383.9023189042.

The spelling of 56579904 in words is "fifty-six million, five hundred seventy-nine thousand, nine hundred four".