26255249 has 2 divisors, whose sum is σ = 26255250. Its totient is φ = 26255248.

The previous prime is 26255209. The next prime is 26255269. The reversal of 26255249 is 94255262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23348224 + 2907025 = 4832^2 + 1705^2 .

It is a cyclic number.

It is not a de Polignac number, because 26255249 - 2⁸ = 26254993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (26255209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13127624 + 13127625.

It is an arithmetic number, because the mean of its divisors is an integer number (13127625).

Almost surely, 2^26255249 is an apocalyptic number.

It is an amenable number.

26255249 is a deficient number, since it is larger than the sum of its proper divisors (1).

26255249 is an equidigital number, since it uses as much as digits as its factorization.

26255249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 35.

The square root of 26255249 is about 5123.9876073230. The cubic root of 26255249 is about 297.2159056172.

It can be divided in two parts, 2625 and 5249, that multiplied together give a triangular number (13778625 = T₅₂₄₉).

The spelling of 26255249 in words is "twenty-six million, two hundred fifty-five thousand, two hundred forty-nine".