26265779 has 2 divisors, whose sum is σ = 26265780. Its totient is φ = 26265778.

The previous prime is 26265761. The next prime is 26265781. The reversal of 26265779 is 97756262.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26265779 is a prime.

It is a super-2 number, since 2×26265779² = 1379782292953682, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 26265781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26265719) 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, 13132889 + 13132890.

It is an arithmetic number, because the mean of its divisors is an integer number (13132890).

Almost surely, 2^26265779 is an apocalyptic number.

26265779 is a deficient number, since it is larger than the sum of its proper divisors (1).

26265779 is an equidigital number, since it uses as much as digits as its factorization.

26265779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 44.

The square root of 26265779 is about 5125.0150243682. The cubic root of 26265779 is about 297.2556343736.

The spelling of 26265779 in words is "twenty-six million, two hundred sixty-five thousand, seven hundred seventy-nine".