Who the f**k thought that it will be exactly 247 mil?
You can do the calculation yourself: Halves every 60480 blocks, initial 2048.

Per/Block   Total Coins
2048      123863040
1024      61931520
512      30965760
256      15482880
128      7741440
64      3870720
32      1935360
16      967680
8      483840
4      241920
2      120960 (last split)
Total      247605120

After 247605120 coins, the system should keep difficulty so that 0,5% inflation is possible...

The source code is public. Don't listen to what people speculate. Don't speculate. Check yourself. Don't believe me? Check it right now! CHECK IT!