540054

Appears in sequences

• Numbers k such that (k + R(k)) / (k - R(k)) = +-11 where R(k) is the digit reversal of k (A004086).at n=16A062390
• Numbers k such that R(k)/k is of the form m/(m + 1), where R(k) is the digital reversal of k.at n=19A376260