F= NDSolve[{y''[x] ==0.25y[x],y[0]==1, y[1]==Exp[0.5]},y,{x,0,1}]//Quiet

ODES[x_]:=Evaluate[y[x]/.F][[1]]

ODES[1]

N[ODES'[0],10]

Plot[ODES[x],{x,0,1}]