no- 55 is what is called deficient,
Its proper divisors sum 1 + 5 + 11 = 17 which is less that 55.
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There are no perfect squares that add, multiply or divide to give 55. However, 82 - 32 = 55 also 282 - 272 = 55.
55*55 = 3025 or (-55)*(-55) = 3025 which makes 3025 the square of the integers ±55, and thus a perfect square.
55 is not a prime number because you can do 5*11=55. The definition of a prime number is a number that has only the factors of 1 and itself. Because 55 has 1*55-55 AND 5*11=55 it is not a prime number. Hope that helps!!
55 is not a perfect square, so the simplest expression (without rounding) is the square root of 55 itself.
55 is deficient.