520605111052 has 12 divisors (see below), whose sum is σ = 981140401696. Its totient is φ = 240279282000.

The previous prime is 520605111031. The next prime is 520605111053. The reversal of 520605111052 is 250111506025.

It is a self number, because there is not a number n which added to its sum of digits gives 520605111052.

It is not an unprimeable number, because it can be changed into a prime (520605111053) 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, 5005818324 + ... + 5005818427.

Almost surely, 2^520605111052 is an apocalyptic number.

520605111052 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

520605111052 is a deficient number, since it is larger than the sum of its proper divisors (460535290644).

520605111052 is a wasteful number, since it uses less digits than its factorization.

520605111052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10011636768 (or 10011636766 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 520605111052 its reverse (250111506025), we get a palindrome (770716617077).

The spelling of 520605111052 in words is "five hundred twenty billion, six hundred five million, one hundred eleven thousand, fifty-two".