555

What would you like to do with the number 555? Here are some quick facts you can use in exams:

• Roman numeral: DLV
• Prime factorization: 3 × 5 × 37
• Divisors: 1, 3, 5, 15, 37, 111, 185, 555
• Sum of digits: 15
• Binary: 1000101011
• Hexadecimal: 0x22B

Tell me which one you want to explore, or I can generate a few exam-style problems around it.