55697

Properties

Appears in sequences

• Primes p such that (p-1) and the period length of 1/p are both squares.at n=22A076516
• Primes with minimal digit = 5.at n=43A106105
• Primes of the form 4*k^2 + 1.at n=38A121326
• Primes which are within 1 of a square number.at n=40A163588
• Primes p such that gcd(phi(p-1), sigma(p-1)) = 1 with phi = A000010, sigma = A000203.at n=26A270539
• Number of connected induced (non-null) subgraphs of the complete binary tree with n nodes.at n=25A286304
• Primes of the form (m^(p^2) - 1)/(m^p - 1) with prime p and integer m >= 2.at n=40A383925
• Prime numbersat n=5653