25906089128 has 16 divisors (see below), whose sum is σ = 48746782260. Its totient is φ = 12906947200.

The previous prime is 25906089119. The next prime is 25906089137. The reversal of 25906089128 is 82198060952.

It is an interprime number because it is at equal distance from previous prime (25906089119) and next prime (25906089137).

It can be written as a sum of positive squares in 2 ways, for example, as 25780155844 + 125933284 = 160562^2 + 11222^2 .

It is a super-2 number, since 2×25906089128² (a number of 22 digits) contains 22 as substring.

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, 5759783 + ... + 5764278.

Almost surely, 2^25906089128 is an apocalyptic number.

It is an amenable number.

25906089128 is a deficient number, since it is larger than the sum of its proper divisors (22840693132).

25906089128 is a wasteful number, since it uses less digits than its factorization.

25906089128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11524348 (or 11524344 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 50.

The spelling of 25906089128 in words is "twenty-five billion, nine hundred six million, eighty-nine thousand, one hundred twenty-eight".