52573536 has 72 divisors (see below), whose sum is σ = 155066184. Its totient is φ = 17521920.

The previous prime is 52573523. The next prime is 52573567. The reversal of 52573536 is 63537525.

52573536 is a `hidden beast` number, since 52 + 5 + 73 + 536 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a self number, because there is not a number n which added to its sum of digits gives 52573536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4396 + ... + 11156.

It is an arithmetic number, because the mean of its divisors is an integer number (2153697).

Almost surely, 2^52573536 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 52573536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77533092).

52573536 is an abundant number, since it is smaller than the sum of its proper divisors (102492648).

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

52573536 is an equidigital number, since it uses as much as digits as its factorization.

52573536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6786 (or 6766 counting only the distinct ones).

The product of its digits is 94500, while the sum is 36.

The square root of 52573536 is about 7250.7610635022. The cubic root of 52573536 is about 374.6183637418.

The spelling of 52573536 in words is "fifty-two million, five hundred seventy-three thousand, five hundred thirty-six".