In Leeming's book The World of Myth an Anthology 3rd edition, Atum was the Egyptian sun god of Heliopolis.
True or false?
True.
True.
Atum was indeed the Egyptian sun god associated with the city of Heliopolis. In ancient Egyptian mythology, Atum was considered the creator deity, responsible for bringing the world into existence through his own power. He was often depicted as a human figure, wearing either a headdress with two plumes or a double crown. Atum was closely associated with the sun, being the ultimate source of light and life in Egyptian cosmology.