25242313 has 4 divisors (see below), whose sum is σ = 25487488. Its totient is φ = 24997140.

The previous prime is 25242299. The next prime is 25242319. The reversal of 25242313 is 31324252.

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 25242313 - 2⁵ = 25242281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25242319) 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, 122433 + ... + 122638.

It is an arithmetic number, because the mean of its divisors is an integer number (6371872).

Almost surely, 2^25242313 is an apocalyptic number.

It is an amenable number.

25242313 is a deficient number, since it is larger than the sum of its proper divisors (245175).

25242313 is a wasteful number, since it uses less digits than its factorization.

25242313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245174.

The product of its digits is 1440, while the sum is 22.

The square root of 25242313 is about 5024.1728672489. The cubic root of 25242313 is about 293.3434413126.

Adding to 25242313 its reverse (31324252), we get a palindrome (56566565).

The spelling of 25242313 in words is "twenty-five million, two hundred forty-two thousand, three hundred thirteen".