55

55

positive integer, triangular number, square pyramidal number, heptagonal number, centered nonagonal number, semiprime, palindromic number, Kaprekar number, repdigit, odd number, centered icosahedral number, Fibonacci number, composite number

Prime factor	5, 11

55 (Kó-badi Ga badi)Lamba nbozini dalbo Kó-badi ga póddo 54 Dede Kó-badi Ga baccimodi 56