520304413045 has 4 divisors (see below), whose sum is σ = 624365295660. Its totient is φ = 416243530432.

The previous prime is 520304413043. The next prime is 520304413051. The reversal of 520304413045 is 540314403025.

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

It can be written as a sum of positive squares in 2 ways, for example, as 285678491121 + 234625921924 = 534489^2 + 484382^2 .

It is a cyclic number.

It is not a de Polignac number, because 520304413045 - 2¹ = 520304413043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520304412998 and 520304413016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520304413043) 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, 52030441300 + ... + 52030441309.

It is an arithmetic number, because the mean of its divisors is an integer number (156091323915).

Almost surely, 2^520304413045 is an apocalyptic number.

It is an amenable number.

520304413045 is a deficient number, since it is larger than the sum of its proper divisors (104060882615).

520304413045 is a wasteful number, since it uses less digits than its factorization.

520304413045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104060882614.

The product of its (nonzero) digits is 28800, while the sum is 31.

The spelling of 520304413045 in words is "five hundred twenty billion, three hundred four million, four hundred thirteen thousand, forty-five".