Another titration of KHP and Ca(OH)2?

1.333 grams of KHP was dissolved in 250.0 mL of water. This solution was then used to standardized a calcium hydroxide solution of unknown concentration. When 54.06 mL of this sodium hydroxide solution was titrated with KHP, it required 16.33 mL of the KHP solution to reach the equivalence point. What is the millimolar concentration of calcium hydroxide?