The EU (population 500 million) employees about 33 thousand people - there are more civil servants here in Scotland (population 6 million) - about 50,000.
http://en.wikipedia.org/wiki/European_Civil_Service
Mind you, we have have too many civil servants here in Scotland. However, compared to Greece (population 10 million) which has about 600,000 the EU (and even Scotland's) civil service payroll looks pretty harmless.
NB I think a more accurate number for total EU employees - is about 50 thousand - the 33 thousand figure above is for the executive branch:
http://online.wsj.com/article/SB1000142405311190488830457647...
Still - hardly the "worlds largest bureaucracy"