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556 (number) - Definition and Overview |
| Related Words: M, Account, Act, Afterpiece, Aggregate, Army, Art, Article, Batch, Beat, Billion, Bit, Blood, Book |
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Five hundred and fifty-six is the natural number following 555 and preceding 557.
Mathematical properties
556 is the sum of four consecutive primes (131 + 137 + 139 + 149). But it is never the sum of the proper divisors of any integer, making it an untouchable number.
Other fields
556 is the model number of Unterseeboot 556.
See also: five hundred
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