A company reported total stockholders' equity of $541,000 on its balance sheet dated December 31, 2020. During the year ended December 31, 2021, the company reported net income of $60,100, declared and paid a cash dividend of $18,100, declared and distributed a 10% stock dividend with a $15,100 total market value, issued additional common stock for $71,000, and resold treasury stock for $15,100 that it had purchased in 2020 for $12,100. What is total stockholders' equity as of December 31, 2021?