478516503 has 8 divisors (see below), whose sum is σ = 639583600. Its totient is φ = 318230208.

The previous prime is 478516483. The next prime is 478516517. The reversal of 478516503 is 305615874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 478516503 - 2⁹ = 478515991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478516543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193768 + ... + 196221.

It is an arithmetic number, because the mean of its divisors is an integer number (79947950).

Almost surely, 2^478516503 is an apocalyptic number.

478516503 is a deficient number, since it is larger than the sum of its proper divisors (161067097).

478516503 is a wasteful number, since it uses less digits than its factorization.

478516503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390401.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 478516503 is about 21875.0200685622. The cubic root of 478516503 is about 782.1660715923.

The spelling of 478516503 in words is "four hundred seventy-eight million, five hundred sixteen thousand, five hundred three".