Perfect Square
81537712093848983769225 is a perfect square (285548090685 × 285548090685)
81537712093848983769225 is a perfect square (285548090685 × 285548090685)
81537712093848983769225 is odd
Previous odd number is 81537712093848983769223
Next odd number is 81537712093848983769227
10001010001000010101100010001000110000000101011000100110011110001000010001001
542095202248133948496962893626364591912036889536871705835637603265625