56040120544 has 24 divisors (see below), whose sum is σ = 113887988928. Its totient is φ = 27116186880.

The previous prime is 56040120541. The next prime is 56040120557. The reversal of 56040120544 is 44502104065.

It is a happy number.

It is a super-2 number, since 2×56040120544² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56040120541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28245037 + ... + 28247020.

It is an arithmetic number, because the mean of its divisors is an integer number (4745332872).

Almost surely, 2^56040120544 is an apocalyptic number.

It is an amenable number.

56040120544 is an abundant number, since it is smaller than the sum of its proper divisors (57847868384).

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

56040120544 is a wasteful number, since it uses less digits than its factorization.

56040120544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56492098 (or 56492090 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 56040120544 in words is "fifty-six billion, forty million, one hundred twenty thousand, five hundred forty-four".