Porn Valley- Do the math. Rick Salomon is claiming to be hauling in $2,500,000 a day. According to the N.Y. Daily News, Salomon, 35, is claiming that 50,000 people a day have paid $50 a pop to download the 37 minutes of his former girlfriend, Paris Hilton, having sex with him since he launched it on a Czech-based Web site run by his brother, Jim, last Wednesday.

The video has been digitally clarified since a grainy, night-vision version first appeared on the Web.

“I had tons of shame from this whole thing,” he said yesterday of his kiss ‘n’ sell. “Now, I’m … at least making some money off of it. It’s doing really well and, hopefully, we’re going to make a ton of money.”

Hilton’s manager did not return repeated calls, but Salomon is not worried about any heat from “The Simple Life” star. “I own the rights and they can’t stop me. … I haven’t heard a word.”

But karma may be Hilton’s revenge. Salomon admits, “My love life has been hurting. Tons of strippers want to sleep with me, but no great girls.”