25996393 has 2 divisors, whose sum is σ = 25996394. Its totient is φ = 25996392.

The previous prime is 25996387. The next prime is 25996423. The reversal of 25996393 is 39369952.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25482304 + 514089 = 5048^2 + 717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25996393 is a prime.

It is not a weakly prime, because it can be changed into another prime (25996303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12998196 + 12998197.

It is an arithmetic number, because the mean of its divisors is an integer number (12998197).

Almost surely, 2^25996393 is an apocalyptic number.

It is an amenable number.

25996393 is a deficient number, since it is larger than the sum of its proper divisors (1).

25996393 is an equidigital number, since it uses as much as digits as its factorization.

25996393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 393660, while the sum is 46.

The square root of 25996393 is about 5098.6658058751. The cubic root of 25996393 is about 296.2359065619.

The spelling of 25996393 in words is "twenty-five million, nine hundred ninety-six thousand, three hundred ninety-three".