212,890,625

Number
$212 \, 890 \, 625$ is:


 * $5^9 \times 109$


 * The $16$th automorphic number after $1$, $5$, $6$, $25$, $76$, $376$, $625$, $9376$, $90 \, 625$, $109 \, 376$, $890 \, 625$, $2 \, 890 \, 625$, $7 \, 109 \, 376$, $12 \, 890 \, 625$, $87 \, 109 \, 376$:
 * $212 \, 890 \, 625^2 = 45 \, 322 \, 418 \, \mathbf {212 \, 890 \, 625}$