52332813 has 24 divisors (see below), whose sum is σ = 81673592. Its totient is φ = 32099328.

The previous prime is 52332803. The next prime is 52332827. The reversal of 52332813 is 31823325.

It can be written as a sum of positive squares in 4 ways, for example, as 3849444 + 48483369 = 1962^2 + 6963^2 .

It is not a de Polignac number, because 52332813 - 2²⁰ = 51284237 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52332803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50145 + ... + 51177.

Almost surely, 2^52332813 is an apocalyptic number.

It is an amenable number.

52332813 is a deficient number, since it is larger than the sum of its proper divisors (29340779).

52332813 is a wasteful number, since it uses less digits than its factorization.

52332813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485 (or 1482 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 52332813 is about 7234.1421744392. The cubic root of 52332813 is about 374.0457230077.

The spelling of 52332813 in words is "fifty-two million, three hundred thirty-two thousand, eight hundred thirteen".