25190393 has 2 divisors, whose sum is σ = 25190394. Its totient is φ = 25190392.

The previous prime is 25190353. The next prime is 25190443. The reversal of 25190393 is 39309152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24880144 + 310249 = 4988^2 + 557^2 .

It is a cyclic number.

It is not a de Polignac number, because 25190393 - 2¹⁰ = 25189369 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25190353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12595196 + 12595197.

It is an arithmetic number, because the mean of its divisors is an integer number (12595197).

Almost surely, 2^25190393 is an apocalyptic number.

It is an amenable number.

25190393 is a deficient number, since it is larger than the sum of its proper divisors (1).

25190393 is an equidigital number, since it uses as much as digits as its factorization.

25190393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 25190393 is about 5019.0031878850. The cubic root of 25190393 is about 293.1421807585.

Subtracting from 25190393 its sum of digits (32), we obtain a square (25190361 = 5019²).

The spelling of 25190393 in words is "twenty-five million, one hundred ninety thousand, three hundred ninety-three".