26211223 has 2 divisors, whose sum is σ = 26211224. Its totient is φ = 26211222.

The previous prime is 26211221. The next prime is 26211253. The reversal of 26211223 is 32211262.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26211223 - 2¹ = 26211221 is a prime.

It is a super-2 number, since 2×26211223² = 1374056422311458, which contains 22 as substring.

Together with 26211221, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 26211223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26211221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13105611 + 13105612.

It is an arithmetic number, because the mean of its divisors is an integer number (13105612).

Almost surely, 2^26211223 is an apocalyptic number.

26211223 is a deficient number, since it is larger than the sum of its proper divisors (1).

26211223 is an equidigital number, since it uses as much as digits as its factorization.

26211223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 19.

The square root of 26211223 is about 5119.6897366930. The cubic root of 26211223 is about 297.0496842742.

Adding to 26211223 its reverse (32211262), we get a palindrome (58422485).

It can be divided in two parts, 2621 and 1223, that added together give a square (3844 = 62²).

The spelling of 26211223 in words is "twenty-six million, two hundred eleven thousand, two hundred twenty-three".