26217253 has 2 divisors, whose sum is σ = 26217254. Its totient is φ = 26217252.

The previous prime is 26217239. The next prime is 26217259. The reversal of 26217253 is 35271262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19775809 + 6441444 = 4447^2 + 2538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26217253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26217259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13108626 + 13108627.

It is an arithmetic number, because the mean of its divisors is an integer number (13108627).

Almost surely, 2^26217253 is an apocalyptic number.

It is an amenable number.

26217253 is a deficient number, since it is larger than the sum of its proper divisors (1).

26217253 is an equidigital number, since it uses as much as digits as its factorization.

26217253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 26217253 is about 5120.2786057011. The cubic root of 26217253 is about 297.0724616961.

The spelling of 26217253 in words is "twenty-six million, two hundred seventeen thousand, two hundred fifty-three".