51493125760 has 32 divisors (see below), whose sum is σ = 123100755300. Its totient is φ = 20597250048.

The previous prime is 51493125757. The next prime is 51493125773. The reversal of 51493125760 is 6752139415.

It can be written as a sum of positive squares in 2 ways, for example, as 46252524096 + 5240601664 = 215064^2 + 72392^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40228365 + ... + 40229644.

Almost surely, 2^51493125760 is an apocalyptic number.

It is an amenable number.

51493125760 is an abundant number, since it is smaller than the sum of its proper divisors (71607629540).

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

51493125760 is an equidigital number, since it uses as much as digits as its factorization.

51493125760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80458028 (or 80458016 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 51493125760 in words is "fifty-one billion, four hundred ninety-three million, one hundred twenty-five thousand, seven hundred sixty".