56404423810 has 24 divisors (see below), whose sum is σ = 118103957820. Its totient is φ = 19338659424.

The previous prime is 56404423807. The next prime is 56404423813. The reversal of 56404423810 is 1832440465.

It is an interprime number because it is at equal distance from previous prime (56404423807) and next prime (56404423813).

It can be written as a sum of positive squares in 2 ways, for example, as 45262988001 + 11141435809 = 212751^2 + 105553^2 .

It is a super-2 number, since 2×56404423810² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56404423810.

It is not an unprimeable number, because it can be changed into a prime (56404423813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57555045 + ... + 57556024.

Almost surely, 2^56404423810 is an apocalyptic number.

56404423810 is an abundant number, since it is smaller than the sum of its proper divisors (61699534010).

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

56404423810 is a wasteful number, since it uses less digits than its factorization.

56404423810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115111090 (or 115111083 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 56404423810 in words is "fifty-six billion, four hundred four million, four hundred twenty-three thousand, eight hundred ten".