25395253 has 4 divisors (see below), whose sum is σ = 27348748. Its totient is φ = 23441760.

The previous prime is 25395247. The next prime is 25395257. The reversal of 25395253 is 35259352.

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 14152644 + 11242609 = 3762^2 + 3353^2 .

It is a cyclic number.

It is not a de Polignac number, because 25395253 - 2⁹ = 25394741 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 (25395257) 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, 976728 + ... + 976753.

It is an arithmetic number, because the mean of its divisors is an integer number (6837187).

Almost surely, 2^25395253 is an apocalyptic number.

It is an amenable number.

25395253 is a deficient number, since it is larger than the sum of its proper divisors (1953495).

25395253 is a wasteful number, since it uses less digits than its factorization.

25395253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953494.

The product of its digits is 40500, while the sum is 34.

The square root of 25395253 is about 5039.3702979638. The cubic root of 25395253 is about 293.9346924834.

The spelling of 25395253 in words is "twenty-five million, three hundred ninety-five thousand, two hundred fifty-three".