25854 has 16 divisors (see below), whose sum is σ = 53760. Its totient is φ = 8280.

The previous prime is 25849. The next prime is 25867. The reversal of 25854 is 45852.

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

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 25854.

It is an unprimeable number.

25854 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 7 ways as a sum of consecutive naturals, for example, 117 + ... + 255.

It is an arithmetic number, because the mean of its divisors is an integer number (3360).

2²⁵⁸⁵⁴ is an apocalyptic number.

25854 is an abundant number, since it is smaller than the sum of its proper divisors (27906).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26880).

25854 is a wasteful number, since it uses less digits than its factorization.

25854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175.

The product of its digits is 1600, while the sum is 24.

The square root of 25854 is about 160.7917908352. The cubic root of 25854 is about 29.5694047151.

Adding to 25854 its sum of digits (24), we get a triangular number (25878 = T₂₂₇).

The spelling of 25854 in words is "twenty-five thousand, eight hundred fifty-four".