5953
This number is a prime.
The number of palindromic primes less than ten billion is also a star number and the reverse concatenation of two consecutive sexy primes. [Green]
The largest prime formed from the concatenation in reverse order of a pair of double-digit sexy right-truncatable primes (53, 59). [Loungrides]
(There are 2 curios for this number that have not yet been approved by an editor.)
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