If you simplify it, you get 501 and 2/5 (<----fraction).
2507 = MMDVII
400 + 2507 = 2907
SAF 2507 is a trademark for a super-duplex stainless steel developed by Sandvik. SAF 2507 super-duplex steel is characterized by, for example, high corrosion resistance in chloride containing media, including seawater. The trademark SAF 2507 is owned by Sandvik Intellectual Property.
It is 2500
The Bold and the Beautiful - 1987 1-2507 was released on: USA: 25 March 1997
2507
2507 billion
2507 miles or 4034 km
0.47481 mile (rounded)
Fire Temple from Ninjago
304/327-2507
2507