Add up its proper divisors and see. 25 + 10 + 5 + 2 + 1 = 43 which is less that 50,
so this number is deficient.
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It is a deficient number. The first abundant number is 12. 12: 1,2,3,4,6,12 which equal 28 28>(12*2) and the abundance is 28-(12*2)=4
it is perfect i believe the factors are 1,2,4,7,and 14
A perfect number is one with factors (apart from itself) that sum to give the original number. An abundant number is one where this sum is greater than the original number. A deficient number is one where the sum is less than the original number. The factors of 75 are 1, 3, 5, 15 and 25. The sum of these numbers is 49. Thus 75 is a deficient number.