O.K. it pays in smaller numbers, but if you let it get to 50.025 it does NOT pay, you claim 0 when it says 50.025
I didnt test to max amount of 50.025 gold. If I recall well the page needed around 16 minutes to max to that amount; my suggestion is to set a countdown at 14-15 minutes, as reminder while doing other tasks, so you can complete captcha before it maxes out. This is what I used to do when I started the game, months ago.