25608764 has 12 divisors (see below), whose sum is σ = 45908688. Its totient is φ = 12492000.

The previous prime is 25608763. The next prime is 25608799. The reversal of 25608764 is 46780652.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25608763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77912 + ... + 78239.

It is an arithmetic number, because the mean of its divisors is an integer number (3825724).

Almost surely, 2^25608764 is an apocalyptic number.

It is an amenable number.

25608764 is a deficient number, since it is larger than the sum of its proper divisors (20299924).

25608764 is a wasteful number, since it uses less digits than its factorization.

25608764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156196 (or 156194 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 25608764 is about 5060.5102509530. The cubic root of 25608764 is about 294.7561481916.

The spelling of 25608764 in words is "twenty-five million, six hundred eight thousand, seven hundred sixty-four".