if max value is large like 25000 . slider does not step 1 by 1

[IamFishR]

I am creating a slider with range of min 500 and max 25000. when i slide it follows some random step , like if i am on 500 if i move slide even slightly it moves to 578 even if i set up step as 1. is there any way to get step 1 by 1 on this large range. thanks