56376405 has 20 divisors (see below), whose sum is σ = 101060652. Its totient is φ = 30067200.

The previous prime is 56376391. The next prime is 56376409. The reversal of 56376405 is 50467365.

56376405 is a `hidden beast` number, since 5 + 6 + 3 + 7 + 640 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17363889 + 39012516 = 4167^2 + 6246^2 .

It is not a de Polignac number, because 56376405 - 2⁴ = 56376389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56376405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56376409) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 69196 + ... + 70005.

Almost surely, 2^56376405 is an apocalyptic number.

It is an amenable number.

56376405 is a deficient number, since it is larger than the sum of its proper divisors (44684247).

56376405 is a wasteful number, since it uses less digits than its factorization.

56376405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139218 (or 139209 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 56376405 is about 7508.4222710234. The cubic root of 56376405 is about 383.4415099024.

The spelling of 56376405 in words is "fifty-six million, three hundred seventy-six thousand, four hundred five".