25680708 has 18 divisors (see below), whose sum is σ = 64915214. Its totient is φ = 8560224.

The previous prime is 25680691. The next prime is 25680731. The reversal of 25680708 is 80708652.

It can be written as a sum of positive squares in only one way, i.e., 25583364 + 97344 = 5058^2 + 312^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 713353 = 25680708 / (2 + 5 + 6 + 8 + 0 + 7 + 0 + 8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 356641 + ... + 356712.

Almost surely, 2^25680708 is an apocalyptic number.

It is an amenable number.

25680708 is an abundant number, since it is smaller than the sum of its proper divisors (39234506).

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

25680708 is a wasteful number, since it uses less digits than its factorization.

25680708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713363 (or 713358 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 25680708 is about 5067.6136395744. The cubic root of 25680708 is about 295.0319145784.

The spelling of 25680708 in words is "twenty-five million, six hundred eighty thousand, seven hundred eight".