25304013 has 12 divisors (see below), whose sum is σ = 41771808. Its totient is φ = 14459400.

The previous prime is 25304003. The next prime is 25304021. The reversal of 25304013 is 31040352.

It is not a de Polignac number, because 25304013 - 2⁸ = 25303757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25304003) 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, 200763 + ... + 200888.

It is an arithmetic number, because the mean of its divisors is an integer number (3480984).

Almost surely, 2^25304013 is an apocalyptic number.

It is an amenable number.

25304013 is a deficient number, since it is larger than the sum of its proper divisors (16467795).

25304013 is a wasteful number, since it uses less digits than its factorization.

25304013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401664 (or 401661 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 25304013 is about 5030.3094338221. The cubic root of 25304013 is about 293.5822541289.

Adding to 25304013 its reverse (31040352), we get a palindrome (56344365).

The spelling of 25304013 in words is "twenty-five million, three hundred four thousand, thirteen".