25255 has 4 divisors (see below), whose sum is σ = 30312. Its totient is φ = 20200.

The previous prime is 25253. The next prime is 25261. The reversal of 25255 is 55252.

25255 = T₉₈ + T₉₉ + ... + T₁₀₂.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25255 - 2¹ = 25253 is a prime.

It is a Duffinian number.

25255 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25253) 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, 2521 + ... + 2530.

It is an arithmetic number, because the mean of its divisors is an integer number (7578).

2²⁵²⁵⁵ is an apocalyptic number.

25255 is a deficient number, since it is larger than the sum of its proper divisors (5057).

25255 is an equidigital number, since it uses as much as digits as its factorization.

25255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5056.

The product of its digits is 500, while the sum is 19.

The square root of 25255 is about 158.9182179613. The cubic root of 25255 is about 29.3392578713.

The spelling of 25255 in words is "twenty-five thousand, two hundred fifty-five".