25930613 has 2 divisors, whose sum is σ = 25930614. Its totient is φ = 25930612.

The previous prime is 25930609. The next prime is 25930631. The reversal of 25930613 is 31603952.

Together with next prime (25930631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23746129 + 2184484 = 4873^2 + 1478^2 .

It is a cyclic number.

It is not a de Polignac number, because 25930613 - 2² = 25930609 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25930643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12965306 + 12965307.

It is an arithmetic number, because the mean of its divisors is an integer number (12965307).

Almost surely, 2^25930613 is an apocalyptic number.

It is an amenable number.

25930613 is a deficient number, since it is larger than the sum of its proper divisors (1).

25930613 is an equidigital number, since it uses as much as digits as its factorization.

25930613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 25930613 is about 5092.2110129098. The cubic root of 25930613 is about 295.9858352426.

The spelling of 25930613 in words is "twenty-five million, nine hundred thirty thousand, six hundred thirteen".