56404688 has 10 divisors (see below), whose sum is σ = 109284114. Its totient is φ = 28202336.

The previous prime is 56404669. The next prime is 56404693. The reversal of 56404688 is 88640465.

56404688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 49392784 + 7011904 = 7028^2 + 2648^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1762631 + ... + 1762662.

Almost surely, 2^56404688 is an apocalyptic number.

It is an amenable number.

56404688 is a deficient number, since it is larger than the sum of its proper divisors (52879426).

56404688 is a wasteful number, since it uses less digits than its factorization.

56404688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3525301 (or 3525295 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 56404688 is about 7510.3054531757. The cubic root of 56404688 is about 383.5056210211.

The spelling of 56404688 in words is "fifty-six million, four hundred four thousand, six hundred eighty-eight".