25768393 has 4 divisors (see below), whose sum is σ = 29449600. Its totient is φ = 22087188.

The previous prime is 25768387. The next prime is 25768403. The reversal of 25768393 is 39386752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25768393 - 2⁹ = 25767881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25768333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1840593 + ... + 1840606.

It is an arithmetic number, because the mean of its divisors is an integer number (7362400).

Almost surely, 2^25768393 is an apocalyptic number.

It is an amenable number.

25768393 is a deficient number, since it is larger than the sum of its proper divisors (3681207).

25768393 is an equidigital number, since it uses as much as digits as its factorization.

25768393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3681206.

The product of its digits is 272160, while the sum is 43.

The square root of 25768393 is about 5076.2577751726. The cubic root of 25768393 is about 295.3673218100.

The spelling of 25768393 in words is "twenty-five million, seven hundred sixty-eight thousand, three hundred ninety-three".