55213

Properties

Appears in sequences

• Total number of 2's digits in the first 10^n primes.at n=4A119293
• Number of ways to place non-attacking knights on the n X n board.at n=5A141243
• Smallest of three consecutive primes whose sum is a square.at n=15A206279
• Primes p for which p + 4, p^2 + 4 and p^3 + 4 are primes.at n=14A243734
• Smallest members of prime triples, the sum of which results in a perfect square.at n=7A309594
• Primes p such that the prime triple (p, p+2 or p+4, p+6) generates a prime number when the digits are concatenated.at n=39A375313
• Prime numbersat n=5609