520520005783 has 4 divisors (see below), whose sum is σ = 520522741728. Its totient is φ = 520517269840.

The previous prime is 520520005769. The next prime is 520520005787. The reversal of 520520005783 is 387500025025.

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 520520005783 - 2⁵ = 520520005751 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 (520520005787) 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, 1059391 + ... + 1470832.

It is an arithmetic number, because the mean of its divisors is an integer number (130130685432).

Almost surely, 2^520520005783 is an apocalyptic number.

520520005783 is a deficient number, since it is larger than the sum of its proper divisors (2735945).

520520005783 is a wasteful number, since it uses less digits than its factorization.

520520005783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735944.

The product of its (nonzero) digits is 84000, while the sum is 37.

The spelling of 520520005783 in words is "five hundred twenty billion, five hundred twenty million, five thousand, seven hundred eighty-three".