25655004996480 has 256 divisors, whose sum is σ = 90882298900800. Its totient is φ = 6839766835200.

The previous prime is 25655004996469. The next prime is 25655004996529. The reversal of 25655004996480 is 8469940055652.

It is a happy number.

25655004996480 is a `hidden beast` number, since 2 + 5 + 6 + 5 + 5 + 0 + 0 + 499 + 64 + 80 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76226970 + ... + 76562790.

Almost surely, 2^{25655004996480} is an apocalyptic number.

25655004996480 is a gapful number since it is divisible by the number (20) 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 25655004996480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45441149450400).

25655004996480 is an abundant number, since it is smaller than the sum of its proper divisors (65227293904320).

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

25655004996480 is a wasteful number, since it uses less digits than its factorization.

25655004996480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340270 (or 340252 counting only the distinct ones).

The product of its (nonzero) digits is 93312000, while the sum is 63.

The spelling of 25655004996480 in words is "twenty-five trillion, six hundred fifty-five billion, four million, nine hundred ninety-six thousand, four hundred eighty".