ISODD/ISEVEN functions on range of cells

Hi,

I would like to sum all EVEN values in the range A1:A50 and found out that it is very easy task with:

{=SUM(IF(MOD(A1:A50,2)=0,A1:A50))}

I tried to investigate what the: {=ISEVEN(A1:A50)} will return and got an error.

Is there a way to use ISEVEN to accomplish my request ?

Thanks, Mike

P.S.
To all of you who wonder - this is not a High-School Exercise - it is purely my curiosity.