25458 has 8 divisors (see below), whose sum is σ = 50928. Its totient is φ = 8484.

The previous prime is 25457. The next prime is 25463. The reversal of 25458 is 85452.

25458 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

25458 is an admirable number.

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

It is not an unprimeable number, because it can be changed into a prime (25453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2116 + ... + 2127.

It is an arithmetic number, because the mean of its divisors is an integer number (6366).

2²⁵⁴⁵⁸ is an apocalyptic number.

25458 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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 (25464).

25458 is a wasteful number, since it uses less digits than its factorization.

25458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4248.

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

The square root of 25458 is about 159.5556329310. Note that the first 3 decimals coincide. The cubic root of 25458 is about 29.4176579563.

It can be divided in two parts, 2 and 5458, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 25458 in words is "twenty-five thousand, four hundred fifty-eight".