25938013 has 2 divisors, whose sum is σ = 25938014. Its totient is φ = 25938012.

The previous prime is 25938001. The next prime is 25938023. The reversal of 25938013 is 31083952.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25836889 + 101124 = 5083^2 + 318^2 .

It is a cyclic number.

It is not a de Polignac number, because 25938013 - 2⁵ = 25937981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25938023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12969006 + 12969007.

It is an arithmetic number, because the mean of its divisors is an integer number (12969007).

Almost surely, 2^25938013 is an apocalyptic number.

It is an amenable number.

25938013 is a deficient number, since it is larger than the sum of its proper divisors (1).

25938013 is an equidigital number, since it uses as much as digits as its factorization.

25938013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 25938013 is about 5092.9375609760. The cubic root of 25938013 is about 296.0139884125.

The spelling of 25938013 in words is "twenty-five million, nine hundred thirty-eight thousand, thirteen".