252400352172 has 24 divisors (see below), whose sum is σ = 594438215616. Its totient is φ = 83347156368.

The previous prime is 252400352167. The next prime is 252400352201. The reversal of 252400352172 is 271253004252.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98285458 + ... + 98288025.

It is an arithmetic number, because the mean of its divisors is an integer number (24768258984).

Almost surely, 2^252400352172 is an apocalyptic number.

It is an amenable number.

252400352172 is an abundant number, since it is smaller than the sum of its proper divisors (342037863444).

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

252400352172 is a wasteful number, since it uses less digits than its factorization.

252400352172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196573597 (or 196573595 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The spelling of 252400352172 in words is "two hundred fifty-two billion, four hundred million, three hundred fifty-two thousand, one hundred seventy-two".