56403104040 has 72 divisors (see below), whose sum is σ = 183324734190. Its totient is φ = 15039626112.

The previous prime is 56403104027. The next prime is 56403104047. The reversal of 56403104040 is 4040130465.

56403104040 is a `hidden beast` number, since 5 + 640 + 3 + 10 + 4 + 0 + 4 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 56120662404 + 282441636 = 236898^2 + 16806^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 56403103995 and 56403104013.

It is not an unprimeable number, because it can be changed into a prime (56403104047) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4499862 + ... + 4512378.

Almost surely, 2^56403104040 is an apocalyptic number.

It is an amenable number.

56403104040 is an abundant number, since it is smaller than the sum of its proper divisors (126921630150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56403104040 is an equidigital number, since it uses as much as digits as its factorization.

56403104040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25051 (or 12527 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Multiplying 56403104040 by its product of nonzero digits (5760), we get a square (324881879270400 = 18024480²).

The spelling of 56403104040 in words is "fifty-six billion, four hundred three million, one hundred four thousand, forty".