25898393 has 2 divisors, whose sum is σ = 25898394. Its totient is φ = 25898392.

The previous prime is 25898371. The next prime is 25898401. The reversal of 25898393 is 39389852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25836889 + 61504 = 5083^2 + 248^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25898393 is a prime.

It is not a weakly prime, because it can be changed into another prime (25898693) 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, 12949196 + 12949197.

It is an arithmetic number, because the mean of its divisors is an integer number (12949197).

Almost surely, 2^25898393 is an apocalyptic number.

It is an amenable number.

25898393 is a deficient number, since it is larger than the sum of its proper divisors (1).

25898393 is an equidigital number, since it uses as much as digits as its factorization.

25898393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 47.

The square root of 25898393 is about 5089.0463743220. The cubic root of 25898393 is about 295.8631923486.

The spelling of 25898393 in words is "twenty-five million, eight hundred ninety-eight thousand, three hundred ninety-three".