Factorization
51988 = 2 × 2 × 41 × 317
51988 has 12 divisors: 1, 2, 4, 41, 82, 164, 317, 634, 1268, 12997, 25994, 51988
Sum of all divisors other than 51988:
41504
Sums & differences
Sum of 2 squares: 51988 = 2222 + 522 = 2282 + 22
Difference of 2 squares: 51988 = 3582 - 2762 = 129982 - 129962
Goldbach conjecture: 51988 = 51977 + 11 = 51971 + 17 = 51941 + 47 = 51929 + 59 = 51899 + 89 = 51839 + 149 = 51797 + 191 = 51749 + 239 = 51719 + 269 = 51599 + 389 = . . . (only the first 10 pairs are shown)
