25256606932868 has 12 divisors (see below), whose sum is σ = 44265929099532. Its totient is φ = 12609198618720.

The previous prime is 25256606932867. The next prime is 25256606932913. The reversal of 25256606932868 is 86823960665252.

It can be written as a sum of positive squares in 2 ways, for example, as 9276057018244 + 15980549914624 = 3045662^2 + 3997568^2 .

It is a super-3 number, since 3×25256606932868³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 25256606932798 and 25256606932807.

It is not an unprimeable number, because it can be changed into a prime (25256606932867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4776208955 + ... + 4776214242.

It is an arithmetic number, because the mean of its divisors is an integer number (3688827424961).

Almost surely, 2^{25256606932868} is an apocalyptic number.

It is an amenable number.

25256606932868 is a deficient number, since it is larger than the sum of its proper divisors (19009322166664).

25256606932868 is a wasteful number, since it uses less digits than its factorization.

25256606932868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9552423862 (or 9552423860 counting only the distinct ones).

The product of its (nonzero) digits is 447897600, while the sum is 68.

The spelling of 25256606932868 in words is "twenty-five trillion, two hundred fifty-six billion, six hundred six million, nine hundred thirty-two thousand, eight hundred sixty-eight".