51544502504 has 24 divisors (see below), whose sum is σ = 106230665730. Its totient is φ = 23429318880.

The previous prime is 51544502491. The next prime is 51544502533. The reversal of 51544502504 is 40520544515.

It can be written as a sum of positive squares in only one way, i.e., 49813776100 + 1730726404 = 223190^2 + 41602^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26623259 + ... + 26625194.

Almost surely, 2^51544502504 is an apocalyptic number.

It is an amenable number.

51544502504 is an abundant number, since it is smaller than the sum of its proper divisors (54686163226).

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

51544502504 is a wasteful number, since it uses less digits than its factorization.

51544502504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53248481 (or 53248466 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

The spelling of 51544502504 in words is "fifty-one billion, five hundred forty-four million, five hundred two thousand, five hundred four".