According to the numbers just the fuel in the LM weighed 53,000lbs. I'm intimately familiar with delta-V, so big???Roughly 6380 gallons, which would require a tank 4ft high by 90ft long to store. I've touched the LM... it's maybe 15ft diameter.
Where are you seeing 53,000 lbs?
Apollo by the Numbers has the total LM weight, not just fuel, at about 33,000 lbs ("Launch Vehicle/Spacecraft Key Facts" in the summary tables PDF).
The tables "LM Descent Stage Propellant Status" and "LM Ascent Stage Propellant Status" show, for example, Apollo 11 having 18,184 lbs of propellant (fuel + oxidizer) loaded in the descent stage and 5,238 lbs in the ascent stage.
The descent stage kept its propellant in four cylindrical tanks --As GdD notes, the LM is a two-stage vehicle; the stages and tanks ofare arranged like this:
The fuel and two of oxidizer. Descent are stored separately; for the descent stage we have fuel: 6,975 lbs, descent stage oxidizer: 11,209 lbs.
The fuel is not very dense, 793 kg/m^3 -- sorry about the mixed units, but Wolfram Alpha can handle it -- yielding 1054 gallons. The oxidizer is denser, 1440 kg/m^3, yielding 932 gallons.
Four tanks, each 4 feet in diameter and about 6 feet in length, can store that volume, and the descent stage is in fact mostly fuel tanks.