25708 has 6 divisors (see below), whose sum is σ = 44996. Its totient is φ = 12852.

The previous prime is 25703. The next prime is 25717. The reversal of 25708 is 80752.

It is not an unprimeable number, because it can be changed into a prime (25703) by changing a digit.

25708 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3210 + ... + 3217.

2²⁵⁷⁰⁸ is an apocalyptic number.

It is an amenable number.

25708 is a deficient number, since it is larger than the sum of its proper divisors (19288).

25708 is a wasteful number, since it uses less digits than its factorization.

25708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6431 (or 6429 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 25708 is about 160.3371447918. The cubic root of 25708 is about 29.5136391972.

The spelling of 25708 in words is "twenty-five thousand, seven hundred eight".