50,625

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Number

$50 \, 625$ (fifth thousand, six hundred and twenty-five) is:

$3^4 \times 5^4$


The $1$st fourth power which can be expressed as the sum of $5$ fourth powers:
$50 \, 625 = 4^4 + 6^4 + 8^4 + 9^4 + 14^4$


The $4$th power of $15$ after $(1)$, $15$, $225$, $3375$:
$50 \, 625 = 15^4$


The $15$th fourth power after $1$, $16$, $81$, $256$, $625$, $1296$, $2401$, $4096$, $6561$, $10 \, 000$, $14 \, 641$, $20 \, 736$, $28 \, 561$, $38 \, 416$:
$50 \, 625 = 15 \times 15 \times 15 \times 15$


The $225$th square number:
$50 \, 625 = 225 \times 225$


Also see


Sources