32216563 has 4 divisors (see below), whose sum is σ = 32228280. Its totient is φ = 32204848.

The previous prime is 32216519. The next prime is 32216567. The reversal of 32216563 is 36561223.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 36561223 = 43 ⋅850261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32216563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32216567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756 + ... + 8062.

It is an arithmetic number, because the mean of its divisors is an integer number (8057070).

Almost surely, 2^32216563 is an apocalyptic number.

32216563 is a deficient number, since it is larger than the sum of its proper divisors (11717).

32216563 is an equidigital number, since it uses as much as digits as its factorization.

32216563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11716.

The product of its digits is 6480, while the sum is 28.

The square root of 32216563 is about 5675.9636186290. The cubic root of 32216563 is about 318.1947931703.

Adding to 32216563 its reverse (36561223), we get a palindrome (68777786).

The spelling of 32216563 in words is "thirty-two million, two hundred sixteen thousand, five hundred sixty-three".