266532223 has 2 divisors, whose sum is σ = 266532224. Its totient is φ = 266532222.

The previous prime is 266532197. The next prime is 266532281. The reversal of 266532223 is 322235662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266532223 - 2⁹ = 266531711 is a prime.

It is equal to p_14532853 and since 266532223 and 14532853 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266532293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133266111 + 133266112.

It is an arithmetic number, because the mean of its divisors is an integer number (133266112).

Almost surely, 2^266532223 is an apocalyptic number.

266532223 is a deficient number, since it is larger than the sum of its proper divisors (1).

266532223 is an equidigital number, since it uses as much as digits as its factorization.

266532223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 31.

The square root of 266532223 is about 16325.8146197977. The cubic root of 266532223 is about 643.5514016094.

Adding to 266532223 its reverse (322235662), we get a palindrome (588767885).

The spelling of 266532223 in words is "two hundred sixty-six million, five hundred thirty-two thousand, two hundred twenty-three".