51722502733172 has 12 divisors (see below), whose sum is σ = 90545177483040. Its totient is φ = 25852452023736.

The previous prime is 51722502733169. The next prime is 51722502733199. The reversal of 51722502733172 is 27133720522715.

It is a congruent number.

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, 2199822488 + ... + 2199845999.

It is an arithmetic number, because the mean of its divisors is an integer number (7545431456920).

Almost surely, 2^{51722502733172} is an apocalyptic number.

It is an amenable number.

51722502733172 is a deficient number, since it is larger than the sum of its proper divisors (38822674749868).

51722502733172 is a wasteful number, since it uses less digits than its factorization.

51722502733172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4399671430 (or 4399671428 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 47.

The spelling of 51722502733172 in words is "fifty-one trillion, seven hundred twenty-two billion, five hundred two million, seven hundred thirty-three thousand, one hundred seventy-two".