6 is 3, 3 is 5, 5 is 4, 4 is cosmic, why is 4 cosmic?

Question

If
9+5+6=454854
8+4+2=328316
5+9+3=452515
Then
9+4+7=?

Answer 1

Letters in the each number.

6 (six is 3)
3 (three is 5)
5 (five is 4)
4 (four is 4)

So four is cosmic.