52521232 has 40 divisors (see below), whose sum is σ = 105333536. Its totient is φ = 25353216.

The previous prime is 52521221. The next prime is 52521257. The reversal of 52521232 is 23212525.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66343 + ... + 67129.

Almost surely, 2^52521232 is an apocalyptic number.

It is an amenable number.

52521232 is an abundant number, since it is smaller than the sum of its proper divisors (52812304).

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

52521232 is a wasteful number, since it uses less digits than its factorization.

52521232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935 (or 929 counting only the distinct ones).

The product of its digits is 1200, while the sum is 22.

The square root of 52521232 is about 7247.1533721869. The cubic root of 52521232 is about 374.4940899351.

Adding to 52521232 its reverse (23212525), we get a palindrome (75733757).

It can be divided in two parts, 52 and 521232, that added together give a square (521284 = 722²).

The spelling of 52521232 in words is "fifty-two million, five hundred twenty-one thousand, two hundred thirty-two".