56387404 has 12 divisors (see below), whose sum is σ = 100777824. Its totient is φ = 27593744.

The previous prime is 56387399. The next prime is 56387413. The reversal of 56387404 is 40478365.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149779 + ... + 150154.

It is an arithmetic number, because the mean of its divisors is an integer number (8398152).

Almost surely, 2^56387404 is an apocalyptic number.

It is an amenable number.

56387404 is a deficient number, since it is larger than the sum of its proper divisors (44390420).

56387404 is a wasteful number, since it uses less digits than its factorization.

56387404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299984 (or 299982 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 56387404 is about 7509.1546794563. The cubic root of 56387404 is about 383.4664446774.

The spelling of 56387404 in words is "fifty-six million, three hundred eighty-seven thousand, four hundred four".