It's difficult to emphasize what a complete statistical outlier Bradman is.

As the parent poster points out, the next highest average is in the low 60s (actually 61.87 now[1]). Looking at the stats though, we see averages are roughly a normal curve, centered on 40 with a standard deviation of a little over 9[2]. This puts Bradman over 6 standard deviations above average!

[1] https://stats.espncricinfo.com/ci/content/records/282910.htm...

[2] https://www.significancemagazine.com/sports/24-did-don-bradm...