266225417 has 2 divisors, whose sum is σ = 266225418. Its totient is φ = 266225416.

The previous prime is 266225381. The next prime is 266225419. The reversal of 266225417 is 714522662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144696841 + 121528576 = 12029^2 + 11024^2 .

It is a cyclic number.

It is not a de Polignac number, because 266225417 - 2¹² = 266221321 is a prime.

Together with 266225419, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (266225419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133112708 + 133112709.

It is an arithmetic number, because the mean of its divisors is an integer number (133112709).

Almost surely, 2^266225417 is an apocalyptic number.

It is an amenable number.

266225417 is a deficient number, since it is larger than the sum of its proper divisors (1).

266225417 is an equidigital number, since it uses as much as digits as its factorization.

266225417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 35.

The square root of 266225417 is about 16316.4155683778. The cubic root of 266225417 is about 643.3043755180.

The spelling of 266225417 in words is "two hundred sixty-six million, two hundred twenty-five thousand, four hundred seventeen".