25647386485056 has 112 divisors (see below), whose sum is σ = 77566582504320. Its totient is φ = 7326523514880.

The previous prime is 25647386484883. The next prime is 25647386485069. The reversal of 25647386485056 is 65058468374652.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×25647386485056² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (69) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5890060 + ... + 9272948.

It is an arithmetic number, because the mean of its divisors is an integer number (692558772360).

Almost surely, 2^{25647386485056} is an apocalyptic number.

It is an amenable number.

25647386485056 is an abundant number, since it is smaller than the sum of its proper divisors (51919196019264).

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

25647386485056 is a wasteful number, since it uses less digits than its factorization.

25647386485056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3388552 (or 3388542 counting only the distinct ones).

The product of its (nonzero) digits is 1161216000, while the sum is 69.

The spelling of 25647386485056 in words is "twenty-five trillion, six hundred forty-seven billion, three hundred eighty-six million, four hundred eighty-five thousand, fifty-six".