25206 has 8 divisors (see below), whose sum is σ = 50424. Its totient is φ = 8400.

The previous prime is 25189. The next prime is 25219. The reversal of 25206 is 60252.

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

25206 is an admirable number.

It is a congruent number.

It is an unprimeable number.

25206 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 3 ways as a sum of consecutive naturals, for example, 2095 + ... + 2106.

It is an arithmetic number, because the mean of its divisors is an integer number (6303).

2²⁵²⁰⁶ is an apocalyptic number.

25206 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 (25212).

25206 is a wasteful number, since it uses less digits than its factorization.

25206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4206.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 25206 is about 158.7639757628. The cubic root of 25206 is about 29.3202708139.

Adding to 25206 its reverse (60252), we get a palindrome (85458).

It can be divided in two parts, 25 and 206, that added together give a triangular number (231 = T₂₁).

The spelling of 25206 in words is "twenty-five thousand, two hundred six".