+"5e5" is a compact notation representing a large number in [Scientific Notation](/wiki/Scientific_Notation). It signifies 5 multiplied by 10 to the power of 5, equating to 500,000, commonly used in fields like [Engineering](/wiki/Engineering) to express magnitudes concisely.
+## See also
+- [Number](/wiki/Number)
+- [Exponent](/wiki/Exponent)
+- [Order of Magnitude](/wiki/Order_of_Magnitude)