Is 50 a good PE ratio?

I'm often hearing about the PE ratio when it comes to evaluating stocks, but I'm still a bit hazy on what exactly makes a good PE ratio. So, could you please clarify for me, is 50 considered a good PE ratio? I've seen some stocks with much lower ratios and some with much higher, so I'm really trying to get a sense of what's considered 'good' in this context. Is it industry-specific, or does it depend on other factors like the company's growth potential or financial health? I'd really appreciate your insights on this matter.