566263939 has 4 divisors (see below), whose sum is σ = 566521120. Its totient is φ = 566006760.

The previous prime is 566263937. The next prime is 566264029. The reversal of 566263939 is 939362665.

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

It is a cyclic number.

It is not a de Polignac number, because 566263939 - 2¹ = 566263937 is a prime.

It is a super-2 number, since 2×566263939² = 641309697223591442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 566263892 and 566263901.

It is not an unprimeable number, because it can be changed into a prime (566263937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125259 + ... + 129700.

It is an arithmetic number, because the mean of its divisors is an integer number (141630280).

Almost surely, 2^566263939 is an apocalyptic number.

566263939 is a deficient number, since it is larger than the sum of its proper divisors (257181).

566263939 is a wasteful number, since it uses less digits than its factorization.

566263939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257180.

The product of its digits is 1574640, while the sum is 49.

The square root of 566263939 is about 23796.3009520387. The cubic root of 566263939 is about 827.3189432375.

The spelling of 566263939 in words is "five hundred sixty-six million, two hundred sixty-three thousand, nine hundred thirty-nine".