25863 has 8 divisors (see below), whose sum is σ = 35568. Its totient is φ = 16704.

The previous prime is 25849. The next prime is 25867. The reversal of 25863 is 36852.

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

It is not a de Polignac number, because 25863 - 2⁴ = 25847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6 + ... + 227.

It is an arithmetic number, because the mean of its divisors is an integer number (4446).

2²⁵⁸⁶³ is an apocalyptic number.

25863 is a deficient number, since it is larger than the sum of its proper divisors (9705).

25863 is a wasteful number, since it uses less digits than its factorization.

25863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273.

The product of its digits is 1440, while the sum is 24.

The square root of 25863 is about 160.8197749035. The cubic root of 25863 is about 29.5728354385.

It can be divided in two parts, 25 and 863, that added together give a palindrome (888).

The spelling of 25863 in words is "twenty-five thousand, eight hundred sixty-three".