Density has a formula of p=m/V
p= density
m= mass
V= volume (*make sure it is a capital V*)
So plug in what we know:
m= 52.45g
V= 13.5 cm
So now plug it into the formula
p= 52.45g/13.5 cm
and solve to get:
4.03333 g/cm
The 3 is repeating so make sure to adjust for significant figures if that applies.