51537172324 has 81 divisors (see below), whose sum is σ = 105482764569. Its totient is φ = 22011665280.

The previous prime is 51537172301. The next prime is 51537172331. The reversal of 51537172324 is 42327173515.

It is a happy number.

The square root of 51537172324 is 227018.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 40124096100 + 11413076224 = 200310^2 + 106832^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 84904429 + ... + 84905035.

Almost surely, 2^51537172324 is an apocalyptic number.

51537172324 is the 227018-th square number.

It is an amenable number.

51537172324 is an abundant number, since it is smaller than the sum of its proper divisors (53945592245).

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

51537172324 is a wasteful number, since it uses less digits than its factorization.

51537172324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274 (or 637 counting only the distinct ones).

The product of its digits is 176400, while the sum is 40.

The spelling of 51537172324 in words is "fifty-one billion, five hundred thirty-seven million, one hundred seventy-two thousand, three hundred twenty-four".