566266 has 4 divisors (see below), whose sum is σ = 849402. Its totient is φ = 283132.

The previous prime is 566233. The next prime is 566273. The reversal of 566266 is 662665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 662665 = 5 ⋅132533.

It can be written as a sum of positive squares in only one way, i.e., 385641 + 180625 = 621^2 + 425^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141565 + ... + 141568.

2⁵⁶⁶²⁶⁶ is an apocalyptic number.

566266 is a deficient number, since it is larger than the sum of its proper divisors (283136).

566266 is a wasteful number, since it uses less digits than its factorization.

566266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283135.

The product of its digits is 12960, while the sum is 31.

The square root of 566266 is about 752.5064783774. The cubic root of 566266 is about 82.7319946952.

The spelling of 566266 in words is "five hundred sixty-six thousand, two hundred sixty-six".