252225320 has 32 divisors (see below), whose sum is σ = 570693600. Its totient is φ = 100323648.

The previous prime is 252225313. The next prime is 252225329. The reversal of 252225320 is 23522252.

It is a happy number.

It is a super-2 number, since 2×252225320² = 127235224098204800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (252225329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10454 + ... + 24773.

It is an arithmetic number, because the mean of its divisors is an integer number (17834175).

Almost surely, 2^252225320 is an apocalyptic number.

252225320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252225320 is an abundant number, since it is smaller than the sum of its proper divisors (318468280).

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

252225320 is a wasteful number, since it uses less digits than its factorization.

252225320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35417 (or 35413 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 252225320 is about 15881.6031936326. The cubic root of 252225320 is about 631.8241579377.

Adding to 252225320 its reverse (23522252), we get a palindrome (275747572).

The spelling of 252225320 in words is "two hundred fifty-two million, two hundred twenty-five thousand, three hundred twenty".