51751415504 has 20 divisors (see below), whose sum is σ = 106166507364. Its totient is φ = 24353607168.

The previous prime is 51751415497. The next prime is 51751415537. The reversal of 51751415504 is 40551415715.

It can be written as a sum of positive squares in 2 ways, for example, as 14366419600 + 37384995904 = 119860^2 + 193352^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95131007 + ... + 95131550.

Almost surely, 2^51751415504 is an apocalyptic number.

It is an amenable number.

51751415504 is an abundant number, since it is smaller than the sum of its proper divisors (54415091860).

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

51751415504 is a wasteful number, since it uses less digits than its factorization.

51751415504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190262582 (or 190262576 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 38.

The spelling of 51751415504 in words is "fifty-one billion, seven hundred fifty-one million, four hundred fifteen thousand, five hundred four".