52665624 has 96 divisors (see below), whose sum is σ = 161038800. Its totient is φ = 15402240.

The previous prime is 52665617. The next prime is 52665637. The reversal of 52665624 is 42656625.

52665624 is a `hidden beast` number, since 5 + 26 + 6 + 5 + 624 = 666.

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, 21822 + ... + 24114.

Almost surely, 2^52665624 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 52665624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80519400).

52665624 is an abundant number, since it is smaller than the sum of its proper divisors (108373176).

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

52665624 is a wasteful number, since it uses less digits than its factorization.

52665624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2345 (or 2338 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 52665624 is about 7257.1085151043. The cubic root of 52665624 is about 374.8369637948.

The spelling of 52665624 in words is "fifty-two million, six hundred sixty-five thousand, six hundred twenty-four".