26041009 has 2 divisors, whose sum is σ = 26041010. Its totient is φ = 26041008.

The previous prime is 26040953. The next prime is 26041019. The reversal of 26041009 is 90014062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26040609 + 400 = 5103^2 + 20^2 .

It is a cyclic number.

It is not a de Polignac number, because 26041009 - 2⁷ = 26040881 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26041019) 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, 13020504 + 13020505.

It is an arithmetic number, because the mean of its divisors is an integer number (13020505).

Almost surely, 2^26041009 is an apocalyptic number.

It is an amenable number.

26041009 is a deficient number, since it is larger than the sum of its proper divisors (1).

26041009 is an equidigital number, since it uses as much as digits as its factorization.

26041009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 26041009 is about 5103.0391924813. The cubic root of 26041009 is about 296.4052801530.

The spelling of 26041009 in words is "twenty-six million, forty-one thousand, nine".