252525028 has 18 divisors (see below), whose sum is σ = 514069206. Its totient is φ = 108224928.

The previous prime is 252524983. The next prime is 252525059. The reversal of 252525028 is 820525252.

It can be written as a sum of positive squares in only one way, i.e., 154554624 + 97970404 = 12432^2 + 9898^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 644001 + ... + 644392.

Almost surely, 2^252525028 is an apocalyptic number.

252525028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

252525028 is an abundant number, since it is smaller than the sum of its proper divisors (261544178).

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

252525028 is a wasteful number, since it uses less digits than its factorization.

252525028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288411 (or 1288402 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 252525028 is about 15891.0360895695. The cubic root of 252525028 is about 632.0743149540.

The spelling of 252525028 in words is "two hundred fifty-two million, five hundred twenty-five thousand, twenty-eight".