28500553250 has 64 divisors (see below), whose sum is σ = 58679921664. Its totient is φ = 10299326400.

The previous prime is 28500553231. The next prime is 28500553259. The reversal of 28500553250 is 5235500582.

It is a self number, because there is not a number n which added to its sum of digits gives 28500553250.

It is not an unprimeable number, because it can be changed into a prime (28500553259) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 59459 + ... + 246041.

It is an arithmetic number, because the mean of its divisors is an integer number (916873776).

Almost surely, 2^28500553250 is an apocalyptic number.

28500553250 is an abundant number, since it is smaller than the sum of its proper divisors (30179368414).

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

28500553250 is a wasteful number, since it uses less digits than its factorization.

28500553250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186660 (or 186650 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 28500553250 in words is "twenty-eight billion, five hundred million, five hundred fifty-three thousand, two hundred fifty".