56905884 has 72 divisors (see below), whose sum is σ = 165253088. Its totient is φ = 16174080.

The previous prime is 56905873. The next prime is 56905897. The reversal of 56905884 is 48850965.

56905884 is a `hidden beast` number, since 5 + 69 + 0 + 588 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60264 + ... + 61200.

Almost surely, 2^56905884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56905884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82626544).

56905884 is an abundant number, since it is smaller than the sum of its proper divisors (108347204).

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

56905884 is a wasteful number, since it uses less digits than its factorization.

56905884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 56905884 is about 7543.5988758682. The cubic root of 56905884 is about 384.6381803392.

The spelling of 56905884 in words is "fifty-six million, nine hundred five thousand, eight hundred eighty-four".