25983 has 6 divisors (see below), whose sum is σ = 37544. Its totient is φ = 17316.

The previous prime is 25981. The next prime is 25997. The reversal of 25983 is 38952.

25983 is nontrivially palindromic in base 11.

It is not a de Polignac number, because 25983 - 2¹ = 25981 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1435 + ... + 1452.

2²⁵⁹⁸³ is an apocalyptic number.

25983 is a deficient number, since it is larger than the sum of its proper divisors (11561).

25983 is a wasteful number, since it uses less digits than its factorization.

25983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2893 (or 2890 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 25983 is about 161.1924315841. The cubic root of 25983 is about 29.6185025541.

It can be divided in two parts, 2598 and 3, that added together give a square (2601 = 51²).

The spelling of 25983 in words is "twenty-five thousand, nine hundred eighty-three".