As stated, it is your data, and you can interpret it however you want. Personally, I would not call it Administrator as that would be at minimum char(13) or 8 *13 = 104 bytes. This is much more expensive than 4bytes required by an int, and if you are talking about usergroups, you can probably get away with a tinyint which is a single byte (giving you up to 256 possible values, or 255 excluding the 0). So if you were to do that, it would be 1/104'th the size for that record (depending of course on the property type and value, I'm just comparing it to the string "Administrator").
Instead, use the numerical value provided and join it to another table which has the text to display. Unless you need to store that data for whatever historical reasons, than you are much better off using the numerical value and joining in the data you need than to store the textual data it represents.