"So here is a number between 1 and 60" Says Grandpa
"If you take its WORD anagram and subtract this number you will get
Anagram of the number - number > 5
What is that number"?
"So it is the anagram of the spelling of the number?" I asked
"Yes, son. Think"
Post script
I see a lot of Fractions as answers. There is a simple integer solution. No Fraction.