56404782 has 48 divisors (see below), whose sum is σ = 145815120. Its totient is φ = 16114896.

The previous prime is 56404771. The next prime is 56404819. The reversal of 56404782 is 28740465.

56404782 is a `hidden beast` number, since 5 + 640 + 4 + 7 + 8 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8013 + ... + 13304.

It is an arithmetic number, because the mean of its divisors is an integer number (3037815).

Almost surely, 2^56404782 is an apocalyptic number.

56404782 is an abundant number, since it is smaller than the sum of its proper divisors (89410338).

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

56404782 is a wasteful number, since it uses less digits than its factorization.

56404782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21342 (or 21329 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 56404782 is about 7510.3117112408. The cubic root of 56404782 is about 383.5058340619.

The spelling of 56404782 in words is "fifty-six million, four hundred four thousand, seven hundred eighty-two".