528529

Appears in sequences

• Squares that are concatenations of two consecutive nonzero numbers.at n=2A030466
• Squares with an even number of digits, the respective halves of which are consecutive integers.at n=3A064014
• Concatenation of the decimal digits of n^2-1 and n^2.at n=23A215268
• Numbers n such that the product of their proper divisors is a palindrome > 1 and not equal to n.at n=18A229970
• Squares whose second arithmetic derivative is a square.at n=15A348425
• Perfect powers k such that A052409(k) is equal to A052409(A366275(k)).at n=22A366278
• Semiprimes whose prime factors are the digit reversal of each other.at n=29A376746