63565163 has 4 divisors (see below), whose sum is σ = 63662280. Its totient is φ = 63468048.

The previous prime is 63565087. The next prime is 63565171. The reversal of 63565163 is 36156536.

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 63565163 - 2¹⁶ = 63499627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63565763) 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, 47570 + ... + 48887.

It is an arithmetic number, because the mean of its divisors is an integer number (15915570).

Almost surely, 2^63565163 is an apocalyptic number.

63565163 is a deficient number, since it is larger than the sum of its proper divisors (97117).

63565163 is an equidigital number, since it uses as much as digits as its factorization.

63565163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97116.

The product of its digits is 48600, while the sum is 35.

The square root of 63565163 is about 7972.7763671133. The cubic root of 63565163 is about 399.0920301195.

The spelling of 63565163 in words is "sixty-three million, five hundred sixty-five thousand, one hundred sixty-three".