25626 has 8 divisors (see below), whose sum is σ = 51264. Its totient is φ = 8540.

The previous prime is 25621. The next prime is 25633. The reversal of 25626 is 62652.

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

25626 is an admirable number.

It is a plaindrome in base 7.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (25621) by changing a digit.

25626 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2130 + ... + 2141.

It is an arithmetic number, because the mean of its divisors is an integer number (6408).

2²⁵⁶²⁶ is an apocalyptic number.

25626 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25632).

25626 is a wasteful number, since it uses less digits than its factorization.

25626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4276.

The product of its digits is 720, while the sum is 21.

The square root of 25626 is about 160.0812293806. The cubic root of 25626 is about 29.4822261985.

It can be divided in two parts, 256 and 26, that added together give a palindrome (282).

The spelling of 25626 in words is "twenty-five thousand, six hundred twenty-six".