52533531 has 12 divisors (see below), whose sum is σ = 76579360. Its totient is φ = 34700400.

The previous prime is 52533527. The next prime is 52533571. The reversal of 52533531 is 13533525.

It is not a de Polignac number, because 52533531 - 2² = 52533527 is a prime.

It is a super-2 number, since 2×52533531² = 5519543758655922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52533495 and 52533504.

It is not an unprimeable number, because it can be changed into a prime (52533571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25795 + ... + 27756.

Almost surely, 2^52533531 is an apocalyptic number.

52533531 is a deficient number, since it is larger than the sum of its proper divisors (24045829).

52533531 is a wasteful number, since it uses less digits than its factorization.

52533531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53666 (or 53663 counting only the distinct ones).

The product of its digits is 6750, while the sum is 27.

The square root of 52533531 is about 7248.0018625825. The cubic root of 52533531 is about 374.5233196590.

Subtracting from 52533531 its sum of digits (27), we obtain a square (52533504 = 7248²).

The spelling of 52533531 in words is "fifty-two million, five hundred thirty-three thousand, five hundred thirty-one".