As a number it is 20,000
Forty-nine thousand,twenty
Twenty-four thousand.
You should write it as twenty nine thousand dollars, assuming that is what you meant.
To write "one million twenty thousand and fifty," you can simply write it as 1,020,050.
Twenty-seven thousand
You can write "two thousand twenty and seven thousandths" as 2,020.007.
Forty-one thousand, twenty
You write it $20,000
one thousand twenty and twenty-five hundredths is written 1,020.25
Twenty thousand.
Twenty thousand.
20,000 is twenty thousand 2,000 is twenty hundred