566432321 has 16 divisors (see below), whose sum is σ = 721190400. Its totient is φ = 432710208.

The previous prime is 566432309. The next prime is 566432323. The reversal of 566432321 is 123234665.

It is not a de Polignac number, because 566432321 - 2¹⁴ = 566415937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (566432323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104681 + ... + 109958.

It is an arithmetic number, because the mean of its divisors is an integer number (45074400).

Almost surely, 2^566432321 is an apocalyptic number.

It is an amenable number.

566432321 is a deficient number, since it is larger than the sum of its proper divisors (154758079).

566432321 is a wasteful number, since it uses less digits than its factorization.

566432321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214688.

The product of its digits is 25920, while the sum is 32.

The square root of 566432321 is about 23799.8386759238. The cubic root of 566432321 is about 827.4009378712.

Adding to 566432321 its reverse (123234665), we get a palindrome (689666986).

The spelling of 566432321 in words is "five hundred sixty-six million, four hundred thirty-two thousand, three hundred twenty-one".