252115320 has 128 divisors (see below), whose sum is σ = 776355840. Its totient is φ = 65479680.

The previous prime is 252115309. The next prime is 252115333. The reversal of 252115320 is 23511252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1081924 + ... + 1082156.

It is an arithmetic number, because the mean of its divisors is an integer number (6065280).

Almost surely, 2^252115320 is an apocalyptic number.

252115320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252115320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388177920).

252115320 is an abundant number, since it is smaller than the sum of its proper divisors (524240520).

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

252115320 is a wasteful number, since it uses less digits than its factorization.

252115320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 252115320 is about 15878.1396895228. The cubic root of 252115320 is about 631.7322946210.

Adding to 252115320 its reverse (23511252), we get a palindrome (275626572).

The spelling of 252115320 in words is "two hundred fifty-two million, one hundred fifteen thousand, three hundred twenty".