25594880256 has 405 divisors, whose sum is σ = 84726957469. Its totient is φ = 7679232000.

The previous prime is 25594880251. The next prime is 25594880347. The reversal of 25594880256 is 65208849552.

The square root of 25594880256 is 159984.

It is a perfect power (a square), and thus also a powerful number.

25594880256 is a `hidden beast` number, since 2 + 559 + 4 + 8 + 80 + 2 + 5 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24591257856 + 1003622400 = 156816^2 + 31680^2 .

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

It is not an unprimeable number, because it can be changed into a prime (25594880251) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 253414606 + ... + 253414706.

Almost surely, 2^25594880256 is an apocalyptic number.

25594880256 is the 159984-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25594880256

25594880256 is an abundant number, since it is smaller than the sum of its proper divisors (59132077213).

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

25594880256 is an equidigital number, since it uses as much as digits as its factorization.

25594880256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 54.

The spelling of 25594880256 in words is "twenty-five billion, five hundred ninety-four million, eight hundred eighty thousand, two hundred fifty-six".