25255253 has 4 divisors (see below), whose sum is σ = 25290720. Its totient is φ = 25219788.

The previous prime is 25255249. The next prime is 25255271. The reversal of 25255253 is 35255252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25255253 - 2² = 25255249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25255213) 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, 16643 + ... + 18096.

It is an arithmetic number, because the mean of its divisors is an integer number (6322680).

Almost surely, 2^25255253 is an apocalyptic number.

It is an amenable number.

25255253 is a deficient number, since it is larger than the sum of its proper divisors (35467).

25255253 is an equidigital number, since it uses as much as digits as its factorization.

25255253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35466.

The product of its digits is 15000, while the sum is 29.

The square root of 25255253 is about 5025.4604764141. The cubic root of 25255253 is about 293.3935584273.

Subtracting 25255253 from its reverse (35255252), we obtain a palindrome (9999999).

It can be divided in two parts, 2525 and 5253, that multiplied together give a triangular number (13263825 = T₅₁₅₀).

The spelling of 25255253 in words is "twenty-five million, two hundred fifty-five thousand, two hundred fifty-three".