26265691 has 2 divisors, whose sum is σ = 26265692. Its totient is φ = 26265690.

The previous prime is 26265689. The next prime is 26265703. The reversal of 26265691 is 19656262.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26265691 - 2¹ = 26265689 is a prime.

Together with 26265689, it forms a pair of twin primes.

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 26265691.

It is not a weakly prime, because it can be changed into another prime (26265641) 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 as a sum of consecutive naturals, namely, 13132845 + 13132846.

It is an arithmetic number, because the mean of its divisors is an integer number (13132846).

Almost surely, 2^26265691 is an apocalyptic number.

26265691 is a deficient number, since it is larger than the sum of its proper divisors (1).

26265691 is an equidigital number, since it uses as much as digits as its factorization.

26265691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 37.

The square root of 26265691 is about 5125.0064390203. The cubic root of 26265691 is about 297.2553024015.

The spelling of 26265691 in words is "twenty-six million, two hundred sixty-five thousand, six hundred ninety-one".