520374313583 has 4 divisors (see below), whose sum is σ = 521058117648. Its totient is φ = 519690509520.

The previous prime is 520374313579. The next prime is 520374313607. The reversal of 520374313583 is 385313473025.

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 520374313583 - 2² = 520374313579 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 (520374313553) 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, 341900891 + ... + 341902412.

It is an arithmetic number, because the mean of its divisors is an integer number (130264529412).

Almost surely, 2^520374313583 is an apocalyptic number.

520374313583 is a deficient number, since it is larger than the sum of its proper divisors (683804065).

520374313583 is an equidigital number, since it uses as much as digits as its factorization.

520374313583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683804064.

The product of its (nonzero) digits is 907200, while the sum is 44.

The spelling of 520374313583 in words is "five hundred twenty billion, three hundred seventy-four million, three hundred thirteen thousand, five hundred eighty-three".