26450609 has 2 divisors, whose sum is σ = 26450610. Its totient is φ = 26450608.

The previous prime is 26450591. The next prime is 26450647. The reversal of 26450609 is 90605462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14992384 + 11458225 = 3872^2 + 3385^2 .

It is a cyclic number.

It is not a de Polignac number, because 26450609 - 2⁸ = 26450353 is a prime.

It is not a weakly prime, because it can be changed into another prime (26450659) 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, 13225304 + 13225305.

It is an arithmetic number, because the mean of its divisors is an integer number (13225305).

Almost surely, 2^26450609 is an apocalyptic number.

It is an amenable number.

26450609 is a deficient number, since it is larger than the sum of its proper divisors (1).

26450609 is an equidigital number, since it uses as much as digits as its factorization.

26450609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 26450609 is about 5143.0155550999. The cubic root of 26450609 is about 297.9512592386.

The spelling of 26450609 in words is "twenty-six million, four hundred fifty thousand, six hundred nine".