25266 has 8 divisors (see below), whose sum is σ = 50544. Its totient is φ = 8420.

The previous prime is 25261. The next prime is 25301. The reversal of 25266 is 66252.

25266 = T₁₈ + T₁₉ + ... + T₅₃.

25266 is nontrivially palindromic in base 5.

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

25266 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (25261) by changing a digit.

25266 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2100 + ... + 2111.

It is an arithmetic number, because the mean of its divisors is an integer number (6318).

2²⁵²⁶⁶ is an apocalyptic number.

25266 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 (25272).

25266 is a wasteful number, since it uses less digits than its factorization.

25266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4216.

The product of its digits is 720, while the sum is 21.

The square root of 25266 is about 158.9528231898. The cubic root of 25266 is about 29.3435168958.

The spelling of 25266 in words is "twenty-five thousand, two hundred sixty-six".