55 (alƙalami)
 55 | |
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positive integer (en)  , triangular number (en) , square pyramidal number (en) , heptagonal number (en) , centered nonagonal number (en) , semiprime (en) , palindromic number (en) , Kaprekar number (en) , repdigit (en) , odd number (en) , centered icosahedral number (en) , Fibonacci number (en) da composite number (en) | |
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| Bayanai | |
| Prime factor (en) | biyar da 11 |