25545684576 has 96 divisors (see below), whose sum is σ = 71259562080. Its totient is φ = 7985258496.

The previous prime is 25545684529. The next prime is 25545684589. The reversal of 25545684576 is 67548654552.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423810 + ... + 480318.

It is an arithmetic number, because the mean of its divisors is an integer number (742287105).

Almost surely, 2^25545684576 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 25545684576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35629781040).

25545684576 is an abundant number, since it is smaller than the sum of its proper divisors (45713877504).

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

25545684576 is a wasteful number, since it uses less digits than its factorization.

25545684576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56816 (or 56808 counting only the distinct ones).

The product of its digits is 40320000, while the sum is 57.

The spelling of 25545684576 in words is "twenty-five billion, five hundred forty-five million, six hundred eighty-four thousand, five hundred seventy-six".