25845520756 has 72 divisors (see below), whose sum is σ = 52350665472. Its totient is φ = 11060928000.

The previous prime is 25845520741. The next prime is 25845520763. The reversal of 25845520756 is 65702554852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1860396 + ... + 1874236.

It is an arithmetic number, because the mean of its divisors is an integer number (727092576).

Almost surely, 2^25845520756 is an apocalyptic number.

It is an amenable number.

25845520756 is an abundant number, since it is smaller than the sum of its proper divisors (26505144716).

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

25845520756 is a wasteful number, since it uses less digits than its factorization.

25845520756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13961 (or 13922 counting only the distinct ones).

The product of its (nonzero) digits is 3360000, while the sum is 49.

The spelling of 25845520756 in words is "twenty-five billion, eight hundred forty-five million, five hundred twenty thousand, seven hundred fifty-six".