ak against ep allin

[ardie]

wanted to get feedback on a very recent tourney hand. Twenty players left in pp nl 20 tourney, 640 started. Blinds 1500/3000. Hero is in 4th chip position with 54000, villian utg+1 24,000 enters with a push. Is this from a ev standpoint a fold or a call against any pocket pair below KK? Also is it worth risking half your stack at this point on a coin toss with the chance to move into 2nd chip position? Thanks for the feedback