Alicia sold his house for $856,250, which was 125%, of the amount he bought it for. Calculate the amount he paid for the property.

Let's represent the amount Alicia paid for the property as "x".

125% of x is equal to $856,250.

125/100*x = $856,250.

Multiplying both sides of the equation by 100/125 gives:

x = $856,250 * (100/125).

x = $685,000.

Therefore, Alicia paid $685,000 for the property. Answer: \boxed{685,000}.