26056609 has 2 divisors, whose sum is σ = 26056610. Its totient is φ = 26056608.

The previous prime is 26056603. The next prime is 26056627. The reversal of 26056609 is 90665062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14085009 + 11971600 = 3753^2 + 3460^2 .

It is a cyclic number.

It is not a de Polignac number, because 26056609 - 2¹⁹ = 25532321 is a prime.

It is not a weakly prime, because it can be changed into another prime (26056603) 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, 13028304 + 13028305.

It is an arithmetic number, because the mean of its divisors is an integer number (13028305).

Almost surely, 2^26056609 is an apocalyptic number.

It is an amenable number.

26056609 is a deficient number, since it is larger than the sum of its proper divisors (1).

26056609 is an equidigital number, since it uses as much as digits as its factorization.

26056609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 26056609 is about 5104.5674645361. The cubic root of 26056609 is about 296.4644560391.

The spelling of 26056609 in words is "twenty-six million, fifty-six thousand, six hundred nine".