25655 has 8 divisors (see below), whose sum is σ = 35232. Its totient is φ = 17568.

The previous prime is 25643. The next prime is 25657. The reversal of 25655 is 55652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25655 - 2⁴ = 25639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25655.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 25655.

It is not an unprimeable number, because it can be changed into a prime (25657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332 + ... + 401.

It is an arithmetic number, because the mean of its divisors is an integer number (4404).

2²⁵⁶⁵⁵ is an apocalyptic number.

25655 is a deficient number, since it is larger than the sum of its proper divisors (9577).

25655 is an equidigital number, since it uses as much as digits as its factorization.

25655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745.

The product of its digits is 1500, while the sum is 23.

The square root of 25655 is about 160.1717827834. The cubic root of 25655 is about 29.4933433223.

The spelling of 25655 in words is "twenty-five thousand, six hundred fifty-five".