SUMMARIZE DATA displays summary statistics about your data. 

These summary statistics include, for each numeric variable, the variable's mean, standard deviation, variance, skewness, kurtosis, and the number of observations.  

In addition, the five number summary (the minimum, 2nd quartile, median, 4th quartile and maximum) is presented for each ordinal and numeric variable.

The SUMMARIZE DATA menu item lets you choose to also get information about ranges, interquartile ranges, correlations and covariances.
