26258269 has 2 divisors, whose sum is σ = 26258270. Its totient is φ = 26258268.

The previous prime is 26258263. The next prime is 26258279. The reversal of 26258269 is 96285262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22686169 + 3572100 = 4763^2 + 1890^2 .

It is a cyclic number.

It is not a de Polignac number, because 26258269 - 2¹⁷ = 26127197 is a prime.

It is a super-2 number, since 2×26258269² = 1378993381752722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26258263) 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, 13129134 + 13129135.

It is an arithmetic number, because the mean of its divisors is an integer number (13129135).

Almost surely, 2^26258269 is an apocalyptic number.

It is an amenable number.

26258269 is a deficient number, since it is larger than the sum of its proper divisors (1).

26258269 is an equidigital number, since it uses as much as digits as its factorization.

26258269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 40.

The square root of 26258269 is about 5124.2822912092. The cubic root of 26258269 is about 297.2273008957.

The spelling of 26258269 in words is "twenty-six million, two hundred fifty-eight thousand, two hundred sixty-nine".