266455226 has 4 divisors (see below), whose sum is σ = 399682842. Its totient is φ = 133227612.

The previous prime is 266455201. The next prime is 266455237. The reversal of 266455226 is 622554662.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 248094001 + 18361225 = 15751^2 + 4285^2 .

It is a super-2 number, since 2×266455226² = 141996774925422152, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 266455226.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66613805 + ... + 66613808.

Almost surely, 2^266455226 is an apocalyptic number.

266455226 is a deficient number, since it is larger than the sum of its proper divisors (133227616).

266455226 is a wasteful number, since it uses less digits than its factorization.

266455226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133227615.

The product of its digits is 172800, while the sum is 38.

The square root of 266455226 is about 16323.4563129259. The cubic root of 266455226 is about 643.4894249885.

The spelling of 266455226 in words is "two hundred sixty-six million, four hundred fifty-five thousand, two hundred twenty-six".