25766390579 has 2 divisors, whose sum is σ = 25766390580. Its totient is φ = 25766390578.

The previous prime is 25766390549. The next prime is 25766390609. The reversal of 25766390579 is 97509366752.

It is a balanced prime because it is at equal distance from previous prime (25766390549) and next prime (25766390609).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25766390579 is a prime.

It is not a weakly prime, because it can be changed into another prime (25766390549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12883195289 + 12883195290.

It is an arithmetic number, because the mean of its divisors is an integer number (12883195290).

Almost surely, 2^25766390579 is an apocalyptic number.

25766390579 is a deficient number, since it is larger than the sum of its proper divisors (1).

25766390579 is an equidigital number, since it uses as much as digits as its factorization.

25766390579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21432600, while the sum is 59.

The spelling of 25766390579 in words is "twenty-five billion, seven hundred sixty-six million, three hundred ninety thousand, five hundred seventy-nine".