Perfect Square
55319580561037852816 is a perfect square (7437713396 × 7437713396)
55319580561037852816 is a perfect square (7437713396 × 7437713396)
55319580561037852816 is even
Previous even number is 55319580561037852814
Next even number is 55319580561037852818
169292077967009572570280534751620659744890982307985479274496
101111111110110110101000010110110010110000010001000000000010010000