252115724 has 24 divisors (see below), whose sum is σ = 516532128. Its totient is φ = 105413760.

The previous prime is 252115691. The next prime is 252115739. The reversal of 252115724 is 427511252.

It is a happy 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, 108659 + ... + 110954.

It is an arithmetic number, because the mean of its divisors is an integer number (21522172).

Almost surely, 2^252115724 is an apocalyptic number.

It is an amenable number.

252115724 is an abundant number, since it is smaller than the sum of its proper divisors (264416404).

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

252115724 is a wasteful number, since it uses less digits than its factorization.

252115724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219665 (or 219663 counting only the distinct ones).

The product of its digits is 5600, while the sum is 29.

The square root of 252115724 is about 15878.1524114111. The cubic root of 252115724 is about 631.7326320588.

Adding to 252115724 its reverse (427511252), we get a palindrome (679626976).

The spelling of 252115724 in words is "two hundred fifty-two million, one hundred fifteen thousand, seven hundred twenty-four".