520351667050 has 12 divisors (see below), whose sum is σ = 967854100806. Its totient is φ = 208140666800.

The previous prime is 520351667009. The next prime is 520351667051. The reversal of 520351667050 is 50766153025.

It can be written as a sum of positive squares in 3 ways, for example, as 199138170001 + 321213497049 = 446249^2 + 566757^2 .

It is a junction number, because it is equal to n+sod(n) for n = 520351666994 and 520351667012.

It is not an unprimeable number, because it can be changed into a prime (520351667051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5203516621 + ... + 5203516720.

Almost surely, 2^520351667050 is an apocalyptic number.

520351667050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

520351667050 is a deficient number, since it is larger than the sum of its proper divisors (447502433756).

520351667050 is a wasteful number, since it uses less digits than its factorization.

520351667050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10407033353 (or 10407033348 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 40.

The spelling of 520351667050 in words is "five hundred twenty billion, three hundred fifty-one million, six hundred sixty-seven thousand, fifty".