25288253 has 4 divisors (see below), whose sum is σ = 25301340. Its totient is φ = 25275168.

The previous prime is 25288229. The next prime is 25288301. The reversal of 25288253 is 35288252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11546404 + 13741849 = 3398^2 + 3707^2 .

It is a cyclic number.

It is not a de Polignac number, because 25288253 - 2²⁴ = 8511037 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 (25288213) 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, 3008 + ... + 7721.

It is an arithmetic number, because the mean of its divisors is an integer number (6325335).

Almost surely, 2^25288253 is an apocalyptic number.

It is an amenable number.

25288253 is a deficient number, since it is larger than the sum of its proper divisors (13087).

25288253 is a wasteful number, since it uses less digits than its factorization.

25288253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13086.

The product of its digits is 38400, while the sum is 35.

The square root of 25288253 is about 5028.7426858013. The cubic root of 25288253 is about 293.5212912396.

Subtracting 25288253 from its reverse (35288252), we obtain a palindrome (9999999).

The spelling of 25288253 in words is "twenty-five million, two hundred eighty-eight thousand, two hundred fifty-three".