25992 has 36 divisors (see below), whose sum is σ = 74295. Its totient is φ = 8208.

The previous prime is 25981. The next prime is 25997. The reversal of 25992 is 29952.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

25992 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in only one way, i.e., 12996 + 12996 = 114^2 + 114^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=114.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (25997) by changing a digit.

25992 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 8 ways as a sum of consecutive naturals, for example, 1359 + ... + 1377.

2²⁵⁹⁹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25992

25992 is an abundant number, since it is smaller than the sum of its proper divisors (48303).

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

25992 is a wasteful number, since it uses less digits than its factorization.

25992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50 (or 24 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 25992 is about 161.2203461105. The cubic root of 25992 is about 29.6219219149.

It can be divided in two parts, 2599 and 2, that added together give a square (2601 = 51²).

The spelling of 25992 in words is "twenty-five thousand, nine hundred ninety-two".