56404777 has 16 divisors (see below), whose sum is σ = 67814208. Its totient is φ = 46226880.

The previous prime is 56404771. The next prime is 56404819. The reversal of 56404777 is 77740465.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56404777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56404771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1563 + ... + 10735.

It is an arithmetic number, because the mean of its divisors is an integer number (4238388).

Almost surely, 2^56404777 is an apocalyptic number.

It is an amenable number.

56404777 is a deficient number, since it is larger than the sum of its proper divisors (11409431).

56404777 is a wasteful number, since it uses less digits than its factorization.

56404777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9240.

The product of its (nonzero) digits is 164640, while the sum is 40.

The square root of 56404777 is about 7510.3113783651. The cubic root of 56404777 is about 383.5058227300.

The spelling of 56404777 in words is "fifty-six million, four hundred four thousand, seven hundred seventy-seven".