Can numbers be good or bad?
Rationally speaking, numbers are merely symbols; tools if you will.
HOWEVER, in my experience certain numbers are charged with barely hidden meanings.
Take for example the number 1. Is it the first? Most often, but to a computer scientist it’s second to zero.
Another number is 88, what do you think of when you see it? I think of two ice skaters practicing in unison.
How about the number 100? In binary it’s a 4, and 101 is five.
Do you have favorite numbers? I do. My affinity for 3 is lifelong.
Do you also have number aversions? I do. Two is not my style, neither is 7. 13 can go jump in a lake.
These favorites and least favorites are based on associations to emotions.
So, no, in a word, numbers cannot have morality but they can carry an emotional charge.