Some traditions associate this prayer with Lord Surya (the Sun god) because of the reference to the lotus that blooms with the sun, but the majority of commentaries attribute it to Vishnu or his incarnation, Krishna.
While the mantra explicitly names "Vishnu," many scholars and devotees also associate this imagery with Lord Ganesha. In some traditions, Ganesha is considered an aspect of Vishnu. The description of the white clothes and the removal of obstacles strongly resonates with Ganesha worship. Therefore, this is one of the few unique mantras that invokes the blessings of both the Preserver (Vishnu) and the Remover of Obstacles (Ganesha). suklam baradharam vishnum lyrics in english pdf
The name itself describes the form of the deity: Some traditions associate this prayer with Lord Surya