25302313 has 4 divisors (see below), whose sum is σ = 25325968. Its totient is φ = 25278660.

The previous prime is 25302287. The next prime is 25302317. The reversal of 25302313 is 31320352.

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 a de Polignac number, because none of the positive numbers 2^k-25302313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25302317) 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, 10143 + ... + 12388.

It is an arithmetic number, because the mean of its divisors is an integer number (6331492).

Almost surely, 2^25302313 is an apocalyptic number.

It is an amenable number.

25302313 is a deficient number, since it is larger than the sum of its proper divisors (23655).

25302313 is a wasteful number, since it uses less digits than its factorization.

25302313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23654.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 25302313 is about 5030.1404552955. The cubic root of 25302313 is about 293.5756794009.

Adding to 25302313 its reverse (31320352), we get a palindrome (56622665).

The spelling of 25302313 in words is "twenty-five million, three hundred two thousand, three hundred thirteen".