727272727domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes with consecutive digits that differ exactly by 5.at n=12A048402Undulating palindromic primes: numbers that are prime, palindromic in base 10, and the digits alternate: ababab... with a != b.at n=27A059758Smoothly undulating alternating primes.at n=29A343591Prime numbersat n=37590767