runner runner royla flush!!

[Blizzle]

i was playing a home game with a couple of friends and the first hand i got trip aces so i was in chip lead.. about ten hands later i had QD JD and the flop comes Ad and two blanks.. there was about 8 ppl in the pot and everyon checks except the dealer, which was the short stack so he pushed it about 425. Everyone folds to me i called jus because i was the big stack and it didnt really effect me. He shows his Ace and i show nothing. Turn comes Kd and river comes Td. I freaked out..... i wanted to know the odds of hitting that!!