52239424 has 28 divisors (see below), whose sum is σ = 105369868. Its totient is φ = 25689600.

The previous prime is 52239391. The next prime is 52239443. The reversal of 52239424 is 42493225.

It can be written as a sum of positive squares in 2 ways, for example, as 3686400 + 48553024 = 1920^2 + 6968^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2787 + ... + 10594.

Almost surely, 2^52239424 is an apocalyptic number.

It is an amenable number.

52239424 is an abundant number, since it is smaller than the sum of its proper divisors (53130444).

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

52239424 is a wasteful number, since it uses less digits than its factorization.

52239424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13454 (or 13444 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 52239424 is about 7227.6845531609. The cubic root of 52239424 is about 373.8230930523.

The spelling of 52239424 in words is "fifty-two million, two hundred thirty-nine thousand, four hundred twenty-four".