From the question on statistic below,I don't understand this "The median is the 53rd one -- it's a 6"

If this is correct 1,2,3,4,5,6,7,8,9, then the 53rd should be an 8 right? Can you explain how you got the 53rd and the 6?
1)
1*1=1
2*3=6
3*11=33
4*17=68

5*20=100
6*24=144
7*16=112
8*8=64
9*5=45
---------
=573/105=5.5
2)
1,2,3,4,5,6,7,8,9

The first 52 values are

1*1 -- 1
2*3 -- 1+3 = 4
3*11 -- 4+11 = 15
4*17 -- 15+17 = 32
5*20 -- 32+20 = 52
so the next one is a 6