520322783 has 4 divisors (see below), whose sum is σ = 530140248. Its totient is φ = 510505320.

The previous prime is 520322779. The next prime is 520322797. The reversal of 520322783 is 387223025.

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 520322783 - 2² = 520322779 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 (520322983) 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, 4908653 + ... + 4908758.

It is an arithmetic number, because the mean of its divisors is an integer number (132535062).

Almost surely, 2^520322783 is an apocalyptic number.

520322783 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

520322783 is a deficient number, since it is larger than the sum of its proper divisors (9817465).

520322783 is an equidigital number, since it uses as much as digits as its factorization.

520322783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9817464.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 520322783 is about 22810.5848894762. The cubic root of 520322783 is about 804.3115047281.

The spelling of 520322783 in words is "five hundred twenty million, three hundred twenty-two thousand, seven hundred eighty-three".