p1    p10  p16 p19 p25 p3  p5  p6  p8  p9
call1   567     0   3   0   18  17  8   4   6   7
call20  4900    7   6   2   23  26  20  14  12  29
echo34  73784   1   4   1   6   4   1   4   8   5
kol45   145873  6   4   0   11  17  5   9   22  11

$ awk 'NR==1 { print } NR != 1 { for (field=1;field<=NF;field++) { if( field<=2 ) { printf "%s%s", $field, OFS } else { if( $field < 25 ) { printf "0%s", OFS  } else { printf "%s%s", $field, OFS } }  } printf "n" }' input
         p1    p10  p16 p19 p25 p3  p5  p6  p8  p9
call1 567 0 0 0 0 0 0 0 0 0
call20 4900 0 0 0 0 26 0 0 0 29
echo34 73784 0 0 0 0 0 0 0 0 0
kol45 145873 0 0 0 0 0 0 0 0 0