Is 54 a deficient number and what is its deficiency?

Is 54 a deficient number?

Here we will explain and calculate if 54 is a deficient number and its deficiency if applicable.

54 is a deficient number if the sum of its proper divisors is less than 54.

The sum of its proper divisors is calculated as follows: 1 + 2 + 3 + 6 + 9 + 18 + 27 = 66.

66 is not less than 54. Therefore, 54 is not a deficient number.

The deficiency of 54 is 54 minus the sum of its proper divisors. Thus, the deficiency of 54 is 54 - 66 = No Deficiency

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