56544318040 has 64 divisors (see below), whose sum is σ = 145487995200. Its totient is φ = 19374847488.

The previous prime is 56544318023. The next prime is 56544318067. The reversal of 56544318040 is 4081344565.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 56544317984 and 56544318002.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 406822 + ... + 527818.

It is an arithmetic number, because the mean of its divisors is an integer number (2273249925).

Almost surely, 2^56544318040 is an apocalyptic number.

It is an amenable number.

56544318040 is an abundant number, since it is smaller than the sum of its proper divisors (88943677160).

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

56544318040 is a wasteful number, since it uses less digits than its factorization.

56544318040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122684 (or 122680 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 56544318040 in words is "fifty-six billion, five hundred forty-four million, three hundred eighteen thousand, forty".