90,625

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Number

$90 \, 625$ (ninety thousand, six hundred and twenty-five) is:

$5^5 \times 29$

The $9$th automorphic number after $1$, $5$, $6$, $25$, $76$, $376$, $625$, $9376$:

$90 \, 625^2 = 8 \, 212 \, 8 \mathbf{90 \, 625}$

and the only automorphic number with $5$ digits which does not begin with a zero

Also see

• Automorphic Numbers with 5 Digits

• Previous  ... Next: Automorphic Number

Sources

• 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $90,625$
• 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $90,625$