520768003 has 4 divisors (see below), whose sum is σ = 595163440. Its totient is φ = 446372568.

The previous prime is 520767997. The next prime is 520768063. The reversal of 520768003 is 300867025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 520768003 - 2⁹ = 520767491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520768063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37197708 + ... + 37197721.

It is an arithmetic number, because the mean of its divisors is an integer number (148790860).

Almost surely, 2^520768003 is an apocalyptic number.

520768003 is a deficient number, since it is larger than the sum of its proper divisors (74395437).

520768003 is an equidigital number, since it uses as much as digits as its factorization.

520768003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74395436.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 520768003 is about 22820.3418686049. The cubic root of 520768003 is about 804.5408453683.

The spelling of 520768003 in words is "five hundred twenty million, seven hundred sixty-eight thousand, three".