So when you write a number out, does it stop being a number and become a word?
A serious answer to a facetious question: Yes, if it makes you process it differently.
I can see text I have recently read clearly enough in my mind to read it back verbatim. Memorizing text to study for tests, debug programs, or just memorize poems or scripture is easy for me.
Visual stuff is impossible. I have no visual memory. When I try to hold a picture in my head, it fades, blurs, or changes until all detail is lost - the more I try to see any detail in it, the faster it disappears. I could stare at a picture for 10 minutes, then close my eyes and be completely unable to describe it. Unless... I convert the description to words before I close my eyes. When I go to a big public place like Disneyland, I have to memorize a description of what my wife and children are wearing, in case we get separated. If I don't, I couldn't even tell you what color shirt my wife is wearing, even though I spent all day with her.
So, when I told a counselor years ago about some disturbing passages of text that I couldn't get out of my mind and couldn't forget, he suggested I convert them to a picture. I did that, and - miracle of miracles - it worked. The text eroded, and I was able to start forgetting some things that I didn't want in my head.
So, back to math. If numbers on paper aren't your thing, there may be another way to look at it. There are visual ways to understand mathematical principles.
Example 1: Picture an aquarium with a divider right in the middle and more water on one side than the other. When you remove the divider what happens? The water equalizes. You've just learned how to average.
Example 2: Visual proof of Pythagoreas theorem: