252528004 has 6 divisors (see below), whose sum is σ = 441924014. Its totient is φ = 126264000.

The previous prime is 252527999. The next prime is 252528007. The reversal of 252528004 is 400825252.

It can be written as a sum of positive squares in only one way, i.e., 251159104 + 1368900 = 15848^2 + 1170^2 .

It is not an unprimeable number, because it can be changed into a prime (252528007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31565997 + ... + 31566004.

Almost surely, 2^252528004 is an apocalyptic number.

It is an amenable number.

252528004 is a deficient number, since it is larger than the sum of its proper divisors (189396010).

252528004 is a wasteful number, since it uses less digits than its factorization.

252528004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63132005 (or 63132003 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 252528004 is about 15891.1297269892. The cubic root of 252528004 is about 632.0767979366.

The spelling of 252528004 in words is "two hundred fifty-two million, five hundred twenty-eight thousand, four".