25662326256 has 240 divisors, whose sum is σ = 88452910080. Its totient is φ = 7095392640.

The previous prime is 25662326219. The next prime is 25662326257. The reversal of 25662326256 is 65262326652.

It is a happy number.

25662326256 is a `hidden beast` number, since 2 + 566 + 2 + 32 + 6 + 2 + 56 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25662326257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 636655 + ... + 675761.

It is an arithmetic number, because the mean of its divisors is an integer number (368553792).

Almost surely, 2^25662326256 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 25662326256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44226455040).

25662326256 is an abundant number, since it is smaller than the sum of its proper divisors (62790583824).

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

25662326256 is a wasteful number, since it uses less digits than its factorization.

25662326256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39169 (or 39150 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The spelling of 25662326256 in words is "twenty-five billion, six hundred sixty-two million, three hundred twenty-six thousand, two hundred fifty-six".