25738393 has 2 divisors, whose sum is σ = 25738394. Its totient is φ = 25738392.

The previous prime is 25738379. The next prime is 25738397. The reversal of 25738393 is 39383752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21790224 + 3948169 = 4668^2 + 1987^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25738393 is a prime.

It is not a weakly prime, because it can be changed into another prime (25738397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12869196 + 12869197.

It is an arithmetic number, because the mean of its divisors is an integer number (12869197).

Almost surely, 2^25738393 is an apocalyptic number.

It is an amenable number.

25738393 is a deficient number, since it is larger than the sum of its proper divisors (1).

25738393 is an equidigital number, since it uses as much as digits as its factorization.

25738393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 40.

The square root of 25738393 is about 5073.3019819443. The cubic root of 25738393 is about 295.2526534176.

The spelling of 25738393 in words is "twenty-five million, seven hundred thirty-eight thousand, three hundred ninety-three".