The interest on a loan of 550,000 yuan is 4%. How much is the interest on the loan for 20 years?
With the interest rate unchanged, the repayment method is "equal principal and interest repayment", with the total interest of 249,894.03 yuan, the monthly repayment amount of 3,332.89 yuan, the total interest of 220,965,438 yuan +06.67 yuan, and the monthly repayment amount is decreasing month by month.