In hebrew:
ברק חוסיין אובאמה = 501
or in Ktiv Chaser:
ברק חוסין אובאמה = 491
In general:
10,9,...1 = א,ב,ג,ד,ה,ו,ז,ח,ט,י
20,...100,90 = כ,ל,מ,נ,ס,ע,פ,צ,ק
ר,ש,ת = 400,300,200
So In English it's probably following similar rules a-j = 1-10, k=20 and so forth...