25655325696 has 1056 divisors, whose sum is σ = 104148215808. Its totient is φ = 6091407360.

The previous prime is 25655325613. The next prime is 25655325727. The reversal of 25655325696 is 69652355652.

25655325696 is a `hidden beast` number, since 2 + 5 + 6 + 553 + 25 + 69 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (1056).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 249080781 + ... + 249080883.

Almost surely, 2^25655325696 is an apocalyptic number.

25655325696 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25655325696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52074107904).

25655325696 is an abundant number, since it is smaller than the sum of its proper divisors (78492890112).

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

25655325696 is a wasteful number, since it uses less digits than its factorization.

25655325696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 139 counting only the distinct ones).

The product of its digits is 14580000, while the sum is 54.

The spelling of 25655325696 in words is "twenty-five billion, six hundred fifty-five million, three hundred twenty-five thousand, six hundred ninety-six".