28000525252 has 24 divisors (see below), whose sum is σ = 56409825024. Its totient is φ = 11912630592.

The previous prime is 28000525249. The next prime is 28000525271. The reversal of 28000525252 is 25252500082.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3645868 + ... + 3653539.

It is an arithmetic number, because the mean of its divisors is an integer number (2350409376).

Almost surely, 2^28000525252 is an apocalyptic number.

It is an amenable number.

28000525252 is an abundant number, since it is smaller than the sum of its proper divisors (28409299772).

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

28000525252 is a wasteful number, since it uses less digits than its factorization.

28000525252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7299555 (or 7299553 counting only the distinct ones).

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

The spelling of 28000525252 in words is "twenty-eight billion, five hundred twenty-five thousand, two hundred fifty-two".