you can buy a property with a minimum value in the deed, of 100 Ecuadorian minimum wages, or,
you can invest the 100 Ecuadorian minimum wages into a CD in a bank or credit union. The advantage is this, every month you will receive an interest, that can go from the 6% to the 9%.
Besides the basic requirements, you need to open a bank or credit union account in Ecuador, some banks allow to open an account only with your passport, and I always recommend the service of Banco de Loja, you can open the Bank Account only with your passport and heve the Debit Card and access to on line banking.