#include<iostream>
using namespace::std;
int add(int A,int B){
	int one = (A==A);
	while(B){
		int C = (A&B) << one;
		A ^= B;
		B = C;
	}
	return A;
}
int main(void){
	int N;
	std::cin >> N;
	int zero = N^N;
	int one = (zero==zero);
	int two = add(one,one);
	if( N == one ){
		cout << "NO" << endl;
		return zero;
	}
	for(int i=two;i<N;i=add(i,one)){
		if( N%i == zero ){
			cout << "NO" << endl;
			return zero;
		}
	}
	cout << "YES" << endl;
	return zero;
}