25502500028 has 24 divisors (see below), whose sum is σ = 45722742912. Its totient is φ = 12439579824.

The previous prime is 25502500007. The next prime is 25502500069. The reversal of 25502500028 is 82000520552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52601 + ... + 231887.

It is an arithmetic number, because the mean of its divisors is an integer number (1905114288).

Almost surely, 2^25502500028 is an apocalyptic number.

It is an amenable number.

25502500028 is a deficient number, since it is larger than the sum of its proper divisors (20220242884).

25502500028 is a wasteful number, since it uses less digits than its factorization.

25502500028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180161 (or 180159 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 25502500028 in words is "twenty-five billion, five hundred two million, five hundred thousand, twenty-eight".