25780793 has 2 divisors, whose sum is σ = 25780794. Its totient is φ = 25780792.

The previous prime is 25780771. The next prime is 25780801. The reversal of 25780793 is 39708752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18207289 + 7573504 = 4267^2 + 2752^2 .

It is a cyclic number.

It is not a de Polignac number, because 25780793 - 2¹² = 25776697 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25780793.

It is not a weakly prime, because it can be changed into another prime (25780763) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12890396 + 12890397.

It is an arithmetic number, because the mean of its divisors is an integer number (12890397).

Almost surely, 2^25780793 is an apocalyptic number.

It is an amenable number.

25780793 is a deficient number, since it is larger than the sum of its proper divisors (1).

25780793 is an equidigital number, since it uses as much as digits as its factorization.

25780793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 25780793 is about 5077.4790004489. The cubic root of 25780793 is about 295.4146920833.

The spelling of 25780793 in words is "twenty-five million, seven hundred eighty thousand, seven hundred ninety-three".