If you look at the node's source tag, you will see it was imported from the Spanish Cadastre, the highest-level public authority on geodata I would say. It is also on GMaps: https://maps.app.goo.gl/CAL9jzYxh5eDaWgu7

While I agree it doesnt make a lot of sense, this numbers are probably there because there is some kind of planification for housing or something like that; so, I believe, it is better to keep them.

Thanks for the note though!