25312317 has 16 divisors (see below), whose sum is σ = 34386240. Its totient is φ = 16560000.

The previous prime is 25312297. The next prime is 25312327. The reversal of 25312317 is 71321352.

It is not a de Polignac number, because 25312317 - 2⁶ = 25312253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25312327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41817 + ... + 42417.

It is an arithmetic number, because the mean of its divisors is an integer number (2149140).

Almost surely, 2^25312317 is an apocalyptic number.

It is an amenable number.

25312317 is a deficient number, since it is larger than the sum of its proper divisors (9073923).

25312317 is a wasteful number, since it uses less digits than its factorization.

25312317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844.

The product of its digits is 1260, while the sum is 24.

The square root of 25312317 is about 5031.1347626554. The cubic root of 25312317 is about 293.6143655099.

Adding to 25312317 its reverse (71321352), we get a palindrome (96633669).

The spelling of 25312317 in words is "twenty-five million, three hundred twelve thousand, three hundred seventeen".