520685952000 has 352 divisors, whose sum is σ = 1791759078720. Its totient is φ = 134058803200.

The previous prime is 520685951983. The next prime is 520685952001. The reversal of 520685952000 is 259586025.

It is a super-2 number, since 2×520685952000² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520685952001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11112622 + ... + 11159378.

Almost surely, 2^520685952000 is an apocalyptic number.

520685952000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520685952000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (895879539360).

520685952000 is an abundant number, since it is smaller than the sum of its proper divisors (1271073126720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520685952000 is a wasteful number, since it uses less digits than its factorization.

520685952000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46824 (or 46796 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 520685952000 in words is "five hundred twenty billion, six hundred eighty-five million, nine hundred fifty-two thousand".