252571128 has 16 divisors (see below), whose sum is σ = 631427880. Its totient is φ = 84190368.

The previous prime is 252571117. The next prime is 252571157. The reversal of 252571128 is 821175252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5261875 + ... + 5261922.

Almost surely, 2^252571128 is an apocalyptic number.

It is an amenable number.

252571128 is an abundant number, since it is smaller than the sum of its proper divisors (378856752).

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

252571128 is a wasteful number, since it uses less digits than its factorization.

252571128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10523806 (or 10523802 counting only the distinct ones).

The product of its digits is 11200, while the sum is 33.

The square root of 252571128 is about 15892.4865266578. The cubic root of 252571128 is about 632.1127756341.

The spelling of 252571128 in words is "two hundred fifty-two million, five hundred seventy-one thousand, one hundred twenty-eight".