520011610650 has 216 divisors, whose sum is σ = 1681238761020. Its totient is φ = 114761041920.

The previous prime is 520011610637. The next prime is 520011610711. The reversal of 520011610650 is 56016110025.

It is a happy number.

520011610650 is a `hidden beast` number, since 5 + 2 + 0 + 0 + 1 + 1 + 6 + 1 + 0 + 650 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 218145977721 + 301865632929 = 467061^2 + 549423^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 232842 + ... + 1046058.

Almost surely, 2^520011610650 is an apocalyptic number.

520011610650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 520011610650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (840619380510).

520011610650 is an abundant number, since it is smaller than the sum of its proper divisors (1161227150370).

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

520011610650 is a wasteful number, since it uses less digits than its factorization.

520011610650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813278 (or 813263 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 520011610650 its reverse (56016110025), we get a palindrome (576027720675).

The spelling of 520011610650 in words is "five hundred twenty billion, eleven million, six hundred ten thousand, six hundred fifty".