The lottery game Mega Millions is played in over

The lottery game Mega Millions is played in over 40 states and requires a dollar per ticket to play. To qualify for the jackpot, a person needs to correctly pick five unique numbers from 1 to 56 (order doesn't matter) and then correctly pick the Megaball from numbers 1-46 (any number is allowed in this 1 -46 range even if it was previously picked for one of the first five numbers). What would the probability be for winning the jackpot based on this information.