This number is a prime.
The smallest Cyclops prime that is the sum of first n primes, i.e., (2 + 3 + 5 + ... + 499 + 503). Note that 503 is a Cyclops prime. [Gaydos]
The sum of the consecutive prime numbers and the sum of consecutive semiprimes are equal at 22039. [Gaydos]
(There is one curio for this number that has not yet been approved by an editor.)
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