25579759 has 2 divisors, whose sum is σ = 25579760. Its totient is φ = 25579758.

The previous prime is 25579739. The next prime is 25579783. The reversal of 25579759 is 95797552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25579759 - 2⁵ = 25579727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25579709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12789879 + 12789880.

It is an arithmetic number, because the mean of its divisors is an integer number (12789880).

Almost surely, 2^25579759 is an apocalyptic number.

25579759 is a deficient number, since it is larger than the sum of its proper divisors (1).

25579759 is an equidigital number, since it uses as much as digits as its factorization.

25579759 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 992250, while the sum is 49.

The square root of 25579759 is about 5057.6436212924. The cubic root of 25579759 is about 294.6448239089.

The spelling of 25579759 in words is "twenty-five million, five hundred seventy-nine thousand, seven hundred fifty-nine".