52189524 has 72 divisors (see below), whose sum is σ = 142407720. Its totient is φ = 16054272.

The previous prime is 52189519. The next prime is 52189547. The reversal of 52189524 is 42598125.

52189524 is a `hidden beast` number, since 52 + 1 + 89 + 524 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 35640900 + 16548624 = 5970^2 + 4068^2 .

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

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, 31632 + ... + 33240.

It is an arithmetic number, because the mean of its divisors is an integer number (1977885).

Almost surely, 2^52189524 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 52189524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71203860).

52189524 is an abundant number, since it is smaller than the sum of its proper divisors (90218196).

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

52189524 is a wasteful number, since it uses less digits than its factorization.

52189524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689 (or 1684 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 52189524 is about 7224.2317238583. The cubic root of 52189524 is about 373.7040277083.

The spelling of 52189524 in words is "fifty-two million, one hundred eighty-nine thousand, five hundred twenty-four".