数据摘要值太高

I have this variables from kaggle : https://www.kaggle.com/harlfoxem/housesalesprediction and I made a liner regression model, but my when I look at my summary data I see that my values (like median) are too high, anyone knows what can be the problem?

Residuals:
     Min       1Q   Median       3Q      Max 
-1195019  -147916   -22050   101763  5530466 

Coefficients:
                Estimate Std. Error t value Pr(>|t|)    
(Intercept)   -6.329e+07  4.185e+06 -15.124  < 2e-16 ***
bedrooms       7.093e+02  2.705e+03   0.262    0.793    
bathrooms      1.268e+05  4.129e+03  30.721  < 2e-16 ***
floors         2.564e+04  4.751e+03   5.398 6.83e-08 ***
waterfront     5.498e+05  2.639e+04  20.830  < 2e-16 ***
view           7.823e+04  3.324e+03  23.533  < 2e-16 ***
condition      6.620e+04  3.453e+03  19.172  < 2e-16 ***
yr_renovated   8.425e+01  5.535e+00  15.221  < 2e-16 ***
zipcode        6.407e+02  4.264e+01  15.023  < 2e-16 ***
sqft_living15  2.188e+02  4.040e+00  54.172  < 2e-16 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 263600 on 15119 degrees of freedom
Multiple R-squared:  0.4959,    Adjusted R-squared:  0.4956 
F-statistic:  1652 on 9 and 15119 DF,  p-value: < 2.2e-16