Numbers / 554

The Number 554

554 is composite: factorization 2 × 277. That gives 554 exactly 4 divisors: 1, 2, 277, 554. 554's proper divisors total just 280, 274 short of 554, the deficient case most of 554's neighbors share too. 554 has a digit sum of 14; for 554, the digital root works out to 5. 554: 2 all divide 554 evenly, out of 2-12. 554 is 1000101010 in binary and 22A in hex; as a Roman numeral it's DLIV.