26591249 has 2 divisors, whose sum is σ = 26591250. Its totient is φ = 26591248.

The previous prime is 26591233. The next prime is 26591261. The reversal of 26591249 is 94219562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25654225 + 937024 = 5065^2 + 968^2 .

It is a cyclic number.

It is not a de Polignac number, because 26591249 - 2⁴ = 26591233 is a prime.

It is not a weakly prime, because it can be changed into another prime (26591209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13295624 + 13295625.

It is an arithmetic number, because the mean of its divisors is an integer number (13295625).

Almost surely, 2^26591249 is an apocalyptic number.

It is an amenable number.

26591249 is a deficient number, since it is larger than the sum of its proper divisors (1).

26591249 is an equidigital number, since it uses as much as digits as its factorization.

26591249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The square root of 26591249 is about 5156.6703404426. The cubic root of 26591249 is about 298.4784029297.

The spelling of 26591249 in words is "twenty-six million, five hundred ninety-one thousand, two hundred forty-nine".