52521532 has 24 divisors (see below), whose sum is σ = 107189600. Its totient is φ = 22508640.

The previous prime is 52521509. The next prime is 52521559. The reversal of 52521532 is 23512525.

It is a happy number.

It is a super-2 number, since 2×52521532² = 5517022647254048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52521497 and 52521506.

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, 17769 + ... + 20512.

Almost surely, 2^52521532 is an apocalyptic number.

It is an amenable number.

52521532 is an abundant number, since it is smaller than the sum of its proper divisors (54668068).

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

52521532 is a wasteful number, since it uses less digits than its factorization.

52521532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38306 (or 38290 counting only the distinct ones).

The product of its digits is 3000, while the sum is 25.

The square root of 52521532 is about 7247.1740699393. The cubic root of 52521532 is about 374.4948029674.

The spelling of 52521532 in words is "fifty-two million, five hundred twenty-one thousand, five hundred thirty-two".