26245243 has 2 divisors, whose sum is σ = 26245244. Its totient is φ = 26245242.

The previous prime is 26245211. The next prime is 26245249. The reversal of 26245243 is 34254262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26245243 - 2⁵ = 26245211 is a prime.

It is not a weakly prime, because it can be changed into another prime (26245249) 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, 13122621 + 13122622.

It is an arithmetic number, because the mean of its divisors is an integer number (13122622).

Almost surely, 2^26245243 is an apocalyptic number.

26245243 is a deficient number, since it is larger than the sum of its proper divisors (1).

26245243 is an equidigital number, since it uses as much as digits as its factorization.

26245243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 28.

The square root of 26245243 is about 5123.0111262811. The cubic root of 26245243 is about 297.1781440223.

The spelling of 26245243 in words is "twenty-six million, two hundred forty-five thousand, two hundred forty-three".