25525076835648 has 448 divisors, whose sum is σ = 79602110300160. Its totient is φ = 7153813168128.

The previous prime is 25525076835619. The next prime is 25525076835673. The reversal of 25525076835648 is 84653867052552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 99704673 + ... + 99960351.

It is an arithmetic number, because the mean of its divisors is an integer number (177683281920).

Almost surely, 2^{25525076835648} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25525076835648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39801055150080).

25525076835648 is an abundant number, since it is smaller than the sum of its proper divisors (54077033464512).

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

25525076835648 is a wasteful number, since it uses less digits than its factorization.

25525076835648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255814 (or 255804 counting only the distinct ones).

The product of its (nonzero) digits is 483840000, while the sum is 66.

The spelling of 25525076835648 in words is "twenty-five trillion, five hundred twenty-five billion, seventy-six million, eight hundred thirty-five thousand, six hundred forty-eight".