define a constant Tron address in solidity

Question

this is my solidity code :

address constant public erc20 = 0xdac917D0C6ae59216317e533CfB295bAfc452f08;

i want to change it to Tron address ( like this ) :

address constant public erc20 = TGA5QuuSEDi6TsLk4CffBqkYVk4oD9DMQ5 ;

but compiler does not allow using this format would you please help me what to do ? thanks