25730272013256 has 40 divisors (see below), whose sum is σ = 72068585964870. Its totient is φ = 8576757337536.

The previous prime is 25730272013249. The next prime is 25730272013279. The reversal of 25730272013256 is 65231027203752.

It is a happy number.

25730272013256 is a `hidden beast` number, since 2 + 57 + 3 + 0 + 272 + 0 + 1 + 325 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25653880581156 + 76391432100 = 5064966^2 + 276390^2 .

It is a super-3 number, since 3×25730272013256³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19853604301 + ... + 19853605596.

Almost surely, 2^{25730272013256} is an apocalyptic number.

It is an amenable number.

25730272013256 is an abundant number, since it is smaller than the sum of its proper divisors (46338313951614).

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

25730272013256 is a wasteful number, since it uses less digits than its factorization.

25730272013256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39707209915 (or 39707209902 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

The spelling of 25730272013256 in words is "twenty-five trillion, seven hundred thirty billion, two hundred seventy-two million, thirteen thousand, two hundred fifty-six".