520349509852 has 12 divisors (see below), whose sum is σ = 958538570920. Its totient is φ = 246481346736.

The previous prime is 520349509843. The next prime is 520349509861. The reversal of 520349509852 is 258905943025.

It is an interprime number because it is at equal distance from previous prime (520349509843) and next prime (520349509861).

It is a super-2 number, since 2×520349509852² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 520349509852.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3423351963 + ... + 3423352114.

Almost surely, 2^520349509852 is an apocalyptic number.

It is an amenable number.

520349509852 is a deficient number, since it is larger than the sum of its proper divisors (438189061068).

520349509852 is a wasteful number, since it uses less digits than its factorization.

520349509852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6846704100 (or 6846704098 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 52.

The spelling of 520349509852 in words is "five hundred twenty billion, three hundred forty-nine million, five hundred nine thousand, eight hundred fifty-two".