252009320 has 32 divisors (see below), whose sum is σ = 567603720. Its totient is φ = 100700160.

The previous prime is 252009319. The next prime is 252009341. The reversal of 252009320 is 23900252.

252009320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 156400036 + 95609284 = 12506^2 + 9778^2 .

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, 45080 + ... + 50360.

Almost surely, 2^252009320 is an apocalyptic number.

252009320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252009320 is an abundant number, since it is smaller than the sum of its proper divisors (315594400).

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

252009320 is a wasteful number, since it uses less digits than its factorization.

252009320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6485 (or 6481 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 252009320 is about 15874.8014160808. The cubic root of 252009320 is about 631.6437465045.

Adding to 252009320 its reverse (23900252), we get a palindrome (275909572).

The spelling of 252009320 in words is "two hundred fifty-two million, nine thousand, three hundred twenty".