56404377 has 8 divisors (see below), whose sum is σ = 83562080. Its totient is φ = 37602900.

The previous prime is 56404367. The next prime is 56404379. The reversal of 56404377 is 77340465.

56404377 is a `hidden beast` number, since 5 + 640 + 4 + 3 + 7 + 7 = 666.

It is not a de Polignac number, because 56404377 - 2¹⁴ = 56387993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56404379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1044499 + ... + 1044552.

It is an arithmetic number, because the mean of its divisors is an integer number (10445260).

Almost surely, 2^56404377 is an apocalyptic number.

It is an amenable number.

56404377 is a deficient number, since it is larger than the sum of its proper divisors (27157703).

56404377 is a wasteful number, since it uses less digits than its factorization.

56404377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089060 (or 2089054 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 56404377 is about 7510.2847482635. The cubic root of 56404377 is about 383.5049161715.

The spelling of 56404377 in words is "fifty-six million, four hundred four thousand, three hundred seventy-seven".