52157157600 has 144 divisors (see below), whose sum is σ = 169847722800. Its totient is φ = 13902336000.

The previous prime is 52157157599. The next prime is 52157157617. The reversal of 52157157600 is 675175125.

It is a super-2 number, since 2×52157157600² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8274450 + ... + 8280750.

It is an arithmetic number, because the mean of its divisors is an integer number (1179498075).

Almost surely, 2^52157157600 is an apocalyptic number.

52157157600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52157157600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84923861400).

52157157600 is an abundant number, since it is smaller than the sum of its proper divisors (117690565200).

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

52157157600 is a wasteful number, since it uses less digits than its factorization.

52157157600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9773 (or 9760 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 39.

The spelling of 52157157600 in words is "fifty-two billion, one hundred fifty-seven million, one hundred fifty-seven thousand, six hundred".