28530000252 has 96 divisors (see below), whose sum is σ = 79691796800. Its totient is φ = 8774562816.

The previous prime is 28530000241. The next prime is 28530000263. The reversal of 28530000252 is 25200003582.

It is an interprime number because it is at equal distance from previous prime (28530000241) and next prime (28530000263).

It is a super-3 number, since 3×28530000252³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6030624 + ... + 6035352.

Almost surely, 2^28530000252 is an apocalyptic number.

It is an amenable number.

28530000252 is an abundant number, since it is smaller than the sum of its proper divisors (51161796548).

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

28530000252 is a wasteful number, since it uses less digits than its factorization.

28530000252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9052 (or 9044 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 28530000252 in words is "twenty-eight billion, five hundred thirty million, two hundred fifty-two", and thus it is an aban number.