25252317 has 12 divisors (see below), whose sum is σ = 37826880. Its totient is φ = 16834716.

The previous prime is 25252303. The next prime is 25252319. The reversal of 25252317 is 71325252.

It is not a de Polignac number, because 25252317 - 2⁷ = 25252189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25252319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51717 + ... + 52202.

It is an arithmetic number, because the mean of its divisors is an integer number (3152240).

Almost surely, 2^25252317 is an apocalyptic number.

25252317 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

25252317 is a deficient number, since it is larger than the sum of its proper divisors (12574563).

25252317 is an equidigital number, since it uses as much as digits as its factorization.

25252317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103934 (or 103922 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 25252317 is about 5025.1683553887. The cubic root of 25252317 is about 293.3821886888.

Adding to 25252317 its reverse (71325252), we get a palindrome (96577569).

The spelling of 25252317 in words is "twenty-five million, two hundred fifty-two thousand, three hundred seventeen".