25000389180028 has 12 divisors (see below), whose sum is σ = 44304487155040. Its totient is φ = 12341964278592.

The previous prime is 25000389179999. The next prime is 25000389180077. The reversal of 25000389180028 is 82008198300052.

It is a super-2 number, since 2×25000389180028² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25000389180028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39557577501 + ... + 39557578132.

Almost surely, 2^{25000389180028} is an apocalyptic number.

It is an amenable number.

25000389180028 is a deficient number, since it is larger than the sum of its proper divisors (19304097975012).

25000389180028 is a wasteful number, since it uses less digits than its factorization.

25000389180028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79115155716 (or 79115155714 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 25000389180028 in words is "twenty-five trillion, three hundred eighty-nine million, one hundred eighty thousand, twenty-eight".