5557

This number is a prime.

+ 2 + 3 + 5 + 7 + 11 + ... + 3833 = 3847 + 3851 + ... + 5557. [Rivera]

+ 5557 is the 733rd prime. Note that 5557 and its index are both near-repdigit prime-digit primes. [Loungrides]

(There is one curio for this number that has not yet been approved by an editor.)

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