RLPC-UPDATE 1-UK lottery firm Camelot up for sale -bankers

* Camelot's five shareholders put company up for sale

* Bids due in around two weeks

* Sale could fetch more than 500 mln pounds

(Adds advisers, purchase price and debt financing, background and context)

By Tessa Walsh and Zaida Espana

LONDON, Nov 6 (Reuters) - Camelot's five shareholders have asked for offers in around two weeks to buy the British national lottery operator in a sale that could fetch more than 500 million pounds ($830 million), two bankers said on Friday.

Camelot has been reviewing its options since earlier this year when some of its shareholders -- Cadbury Plc (CBRY.L), Royal Mail Enterprises, De La Rue (DLAR.L), Fujitsu Services (6702.T) and Thales Electronics (TCFP.PA) -- indicated interest in selling.

"The whole company is up for sale," a banker close to the deal said.

Camelot declined to comment.