Anne reviews the status of her home mortgage schedule for the month of March 2019:

date	item	balance
2019-03-01	outstanding mortgage loan balance	$500,000
2019-03-31	total required monthly payment	$8,000
2019-03-31	Interest component of monthly payment	$3,500

On 2019-03-31, Anne makes a payment of $19,000 rather than the required amount. What will be her outstanding mortgage loan balance immediately after the payment is made?