Objects sending data?

Is it possible for an object to send data like a key or an integer to another object that is not linked?

like if I give the number 521 to a object it can then give it to another object across the room and keep it in the same integer?

Well, you can do this, sort of.

Why would you not want to store it in a parameter of the same type as the value? Typecasting isnt all that bad

If you really dont want to typecast, you dont have many options. You can send the integer as the parameter of llRezObject if the destination object is rezzed...

However, I think typecasting isnt all that bad, and when you use it, the solution to your problem is a bit more easy to see.

In your "sending" script, simply have:
llSay(1, (string) 512);

In your "recieving" script, simply have:
state_entry() {
llListen(1, "", NULL_KEY, "";
}

listen(integer channel, string name, key id, string message) {
integer value = (integer) message;
}

With this, your sending script broadcasts the value "512" (512 converted to a string) on channel 1. The recieving script is "listening" on channel 1 (the handle was opened using llListen) and it recieves the sending script's data in its listen() event.

More information on object2object communications, can be found here:
http://www.badgeometry.com/wiki/communications

For distances further than what llShout can cover, there's llEmail()/email(), but that gets complicated to manage.

you can also use prim names for data, so that your prim that needs the data calls llKey2Name and repeatedly polling the prim name but this only works for 1 sim.