25630313 has 4 divisors (see below), whose sum is σ = 25645200. Its totient is φ = 25615428.

The previous prime is 25630261. The next prime is 25630333. The reversal of 25630313 is 31303652.

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 25630313 - 2⁸ = 25630057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25630333) 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, 4463 + ... + 8436.

It is an arithmetic number, because the mean of its divisors is an integer number (6411300).

Almost surely, 2^25630313 is an apocalyptic number.

It is an amenable number.

25630313 is a deficient number, since it is larger than the sum of its proper divisors (14887).

25630313 is a wasteful number, since it uses less digits than its factorization.

25630313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14886.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 25630313 is about 5062.6389363651. The cubic root of 25630313 is about 294.8388011391.

Adding to 25630313 its reverse (31303652), we get a palindrome (56933965).

The spelling of 25630313 in words is "twenty-five million, six hundred thirty thousand, three hundred thirteen".