52631568 has 120 divisors (see below), whose sum is σ = 162489600. Its totient is φ = 15770880.

The previous prime is 52631563. The next prime is 52631569. The reversal of 52631568 is 86513625.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (52631563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 235905 + ... + 236127.

It is an arithmetic number, because the mean of its divisors is an integer number (1354080).

Almost surely, 2^52631568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52631568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81244800).

52631568 is an abundant number, since it is smaller than the sum of its proper divisors (109858032).

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

52631568 is a wasteful number, since it uses less digits than its factorization.

52631568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 388 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 52631568 is about 7254.7617466048. The cubic root of 52631568 is about 374.7561508012.

The spelling of 52631568 in words is "fifty-two million, six hundred thirty-one thousand, five hundred sixty-eight".