26245013 has 2 divisors, whose sum is σ = 26245014. Its totient is φ = 26245012.

The previous prime is 26244997. The next prime is 26245057. The reversal of 26245013 is 31054262.

26245013 = 3622² + 3623².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13126129 + 13118884 = 3623^2 + 3622^2 .

It is a cyclic number.

It is not a de Polignac number, because 26245013 - 2⁴ = 26244997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26245013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26245613) 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, 13122506 + 13122507.

It is an arithmetic number, because the mean of its divisors is an integer number (13122507).

Almost surely, 2^26245013 is an apocalyptic number.

26245013 is the 3623-rd centered square number.

It is an amenable number.

26245013 is a deficient number, since it is larger than the sum of its proper divisors (1).

26245013 is an equidigital number, since it uses as much as digits as its factorization.

26245013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 26245013 is about 5122.9886784962. The cubic root of 26245013 is about 297.1772759136.

Adding to 26245013 its reverse (31054262), we get a palindrome (57299275).

Subtracting 26245013 from its reverse (31054262), we obtain a square (4809249 = 2193²).

The spelling of 26245013 in words is "twenty-six million, two hundred forty-five thousand, thirteen".