Poor number 2. Surrounded by all those odd primes (3, 5, 7, 11...) at the mathematical gathering of the century. The only even prime number in existence, forever doomed to be the numerical equivalent of bringing a spoon to a fork convention. Those Spider-Man minifigs represent the odd primes with their unique divisibility properties, while our yellow-headed friend stands out like a mathematician who actually got eight hours of sleep.
Fun fact: After 2, every prime number must be odd by definition (only divisible by 1 and itself). This makes 2 the mathematical unicorn - the exception that proves the rule. The loneliest number indeed.