25814 has 4 divisors (see below), whose sum is σ = 38724. Its totient is φ = 12906.

The previous prime is 25801. The next prime is 25819. The reversal of 25814 is 41852.

25814 is nontrivially palindromic in base 8.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 15.

It is a nialpdrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 25814.

It is not an unprimeable number, because it can be changed into a prime (25819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6452 + ... + 6455.

It is an arithmetic number, because the mean of its divisors is an integer number (9681).

2²⁵⁸¹⁴ is an apocalyptic number.

25814 is a deficient number, since it is larger than the sum of its proper divisors (12910).

25814 is a wasteful number, since it uses less digits than its factorization.

25814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12909.

The product of its digits is 320, while the sum is 20.

The square root of 25814 is about 160.6673582281. The cubic root of 25814 is about 29.5541474152.

It can be divided in two parts, 258 and 14, that added together give a palindrome (272).

The spelling of 25814 in words is "twenty-five thousand, eight hundred fourteen".