import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

N = int(read())

one = N // N


def is_p(N):
    if N == one:
        return False
    if any(N % i == one ^ one for i in range(one + one, N)):
        return False
    return True


print('YES' if is_p(N) else 'NO')