52157831572 has 24 divisors (see below), whose sum is σ = 113798905920. Its totient is φ = 20321232960.

The previous prime is 52157831569. The next prime is 52157831581. The reversal of 52157831572 is 27513875125.

It is a congruent number.

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, 84671497 + ... + 84672112.

It is an arithmetic number, because the mean of its divisors is an integer number (4741621080).

Almost surely, 2^52157831572 is an apocalyptic number.

It is an amenable number.

52157831572 is an abundant number, since it is smaller than the sum of its proper divisors (61641074348).

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

52157831572 is a wasteful number, since it uses less digits than its factorization.

52157831572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169343631 (or 169343629 counting only the distinct ones).

The product of its digits is 588000, while the sum is 46.

The spelling of 52157831572 in words is "fifty-two billion, one hundred fifty-seven million, eight hundred thirty-one thousand, five hundred seventy-two".