56256840144 has 80 divisors (see below), whose sum is σ = 165233323200. Its totient is φ = 18316174464.

The previous prime is 56256840121. The next prime is 56256840151. The reversal of 56256840144 is 44104865265.

It is a happy number.

56256840144 is a `hidden beast` number, since 5 + 6 + 2 + 568 + 40 + 1 + 44 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 56256840144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1495659 + ... + 1532810.

It is an arithmetic number, because the mean of its divisors is an integer number (2065416540).

Almost surely, 2^56256840144 is an apocalyptic number.

56256840144 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

56256840144 is an abundant number, since it is smaller than the sum of its proper divisors (108976483056).

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

56256840144 is a wasteful number, since it uses less digits than its factorization.

56256840144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028529 (or 3028517 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The spelling of 56256840144 in words is "fifty-six billion, two hundred fifty-six million, eight hundred forty thousand, one hundred forty-four".