In the blockexplorer, is value out the number of coins from the block miners get?
If so, why are there values like 5257.15637534?
Everything above the 25 SBC (+ fees) are actual transactions. 25 SBC is generated every block and that goes to the miner.
You'll see the first line in a block is something like 'Generation: 25 + 0.2 total fees'