266505227 has 2 divisors, whose sum is σ = 266505228. Its totient is φ = 266505226.

The previous prime is 266505203. The next prime is 266505241. The reversal of 266505227 is 722505662.

266505227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 266505227 - 2²⁶ = 199396363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (266505247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133252613 + 133252614.

It is an arithmetic number, because the mean of its divisors is an integer number (133252614).

Almost surely, 2^266505227 is an apocalyptic number.

266505227 is a deficient number, since it is larger than the sum of its proper divisors (1).

266505227 is an equidigital number, since it uses as much as digits as its factorization.

266505227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 266505227 is about 16324.9878101026. The cubic root of 266505227 is about 643.5296732795.

The spelling of 266505227 in words is "two hundred sixty-six million, five hundred five thousand, two hundred twenty-seven".