25608320676 has 81 divisors (see below), whose sum is σ = 65535612961. Its totient is φ = 8431449888.

The previous prime is 25608320671. The next prime is 25608320729. The reversal of 25608320676 is 67602380652.

It is a happy number.

The square root of 25608320676 is 160026.

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

25608320676 is a `hidden beast` number, since 2 + 5 + 608 + 32 + 0 + 6 + 7 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3000191076 + 22608129600 = 54774^2 + 150360^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25608320671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 143063155 + ... + 143063333.

Almost surely, 2^25608320676 is an apocalyptic number.

25608320676 is the 160026-th square number.

It is an amenable number.

25608320676 is an abundant number, since it is smaller than the sum of its proper divisors (39927292285).

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

25608320676 is a wasteful number, since it uses less digits than its factorization.

25608320676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 25608320676 in words is "twenty-five billion, six hundred eight million, three hundred twenty thousand, six hundred seventy-six".