Push AKos on bubble w/ two big raisers?

[Misfire]

This is a $5+.50

Ultimate Bet No-Limit Hold'em Tourney, Big Blind is t150 (4 handed) converter

Hero (t2910)
BB (t3435)
UTG (t4975)
Button (t3680)

Preflop: Hero is SB with K[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">UTG raises to t525</font>, <font color="#CC3333">Button raises to t1800</font>, Hero???