566248139 has 4 divisors (see below), whose sum is σ = 584514240. Its totient is φ = 547982040.

The previous prime is 566248129. The next prime is 566248147. The reversal of 566248139 is 931842665.

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

It is not a de Polignac number, because 566248139 - 2¹² = 566244043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 566248139.

It is not an unprimeable number, because it can be changed into a prime (566248129) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 9133004 + ... + 9133065.

It is an arithmetic number, because the mean of its divisors is an integer number (146128560).

Almost surely, 2^566248139 is an apocalyptic number.

566248139 is a deficient number, since it is larger than the sum of its proper divisors (18266101).

566248139 is a wasteful number, since it uses less digits than its factorization.

566248139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18266100.

The product of its digits is 311040, while the sum is 44.

The square root of 566248139 is about 23795.9689653521. The cubic root of 566248139 is about 827.3112484977.

The spelling of 566248139 in words is "five hundred sixty-six million, two hundred forty-eight thousand, one hundred thirty-nine".