25614 has 12 divisors (see below), whose sum is σ = 55536. Its totient is φ = 8532.

The previous prime is 25609. The next prime is 25621. The reversal of 25614 is 41652.

It is a happy number.

It is a Smith number, since the sum of its digits (18) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1423 = 25614 / (2 + 5 + 6 + 1 + 4).

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

It is a Curzon number.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

25614 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 5 ways as a sum of consecutive naturals, for example, 694 + ... + 729.

It is an arithmetic number, because the mean of its divisors is an integer number (4628).

2²⁵⁶¹⁴ is an apocalyptic number.

25614 is an abundant number, since it is smaller than the sum of its proper divisors (29922).

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

25614 is a wasteful number, since it uses less digits than its factorization.

25614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431 (or 1428 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 25614 is about 160.0437440202. The cubic root of 25614 is about 29.4776235560.

The spelling of 25614 in words is "twenty-five thousand, six hundred fourteen".