This number is a composite.

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The only prime-digit brilliant number, (55577 = 149 x 373), that can be represented as the sum of two repdigit numbers, each consisting of d times each digit d, i.e., 22 + 55555. [Loungrides]

Submitted: 2019-01-22 12:38:04;   Last Modified: 2019-04-11 06:45:21.
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