25356 has 12 divisors (see below), whose sum is σ = 59192. Its totient is φ = 8448.

The previous prime is 25349. The next prime is 25357. The reversal of 25356 is 65352.

It is a tau number, because it is divible by the number of its divisors (12).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (25357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1045 + ... + 1068.

2²⁵³⁵⁶ is an apocalyptic number.

It is an amenable number.

25356 is an abundant number, since it is smaller than the sum of its proper divisors (33836).

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 (29596).

25356 is a wasteful number, since it uses less digits than its factorization.

25356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120 (or 2118 counting only the distinct ones).

The product of its digits is 900, while the sum is 21.

The square root of 25356 is about 159.2356743949. The cubic root of 25356 is about 29.3783171145.

The spelling of 25356 in words is "twenty-five thousand, three hundred fifty-six".