26568497 has 2 divisors, whose sum is σ = 26568498. Its totient is φ = 26568496.

The previous prime is 26568481. The next prime is 26568499. The reversal of 26568497 is 79486562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17901361 + 8667136 = 4231^2 + 2944^2 .

It is a cyclic number.

It is not a de Polignac number, because 26568497 - 2⁴ = 26568481 is a prime.

Together with 26568499, 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 (26568499) 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, 13284248 + 13284249.

It is an arithmetic number, because the mean of its divisors is an integer number (13284249).

Almost surely, 2^26568497 is an apocalyptic number.

It is an amenable number.

26568497 is a deficient number, since it is larger than the sum of its proper divisors (1).

26568497 is an equidigital number, since it uses as much as digits as its factorization.

26568497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 47.

The square root of 26568497 is about 5154.4637936453. The cubic root of 26568497 is about 298.3932506254.

The spelling of 26568497 in words is "twenty-six million, five hundred sixty-eight thousand, four hundred ninety-seven".