28050000525250 has 64 divisors (see below), whose sum is σ = 57284853260544. Its totient is φ = 10199706000000.

The previous prime is 28050000525199. The next prime is 28050000525257. The reversal of 28050000525250 is 5252500005082.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28050000525257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110288230 + ... + 110542270.

It is an arithmetic number, because the mean of its divisors is an integer number (895075832196).

Almost surely, 2^{28050000525250} is an apocalyptic number.

28050000525250 is an abundant number, since it is smaller than the sum of its proper divisors (29234852735294).

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

28050000525250 is a wasteful number, since it uses less digits than its factorization.

28050000525250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294220 (or 294210 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 28050000525250 in words is "twenty-eight trillion, fifty billion, five hundred twenty-five thousand, two hundred fifty".