520522522020 has 144 divisors (see below), whose sum is σ = 1593666826752. Its totient is φ = 137514412800.

The previous prime is 520522521989. The next prime is 520522522031. The reversal of 520522522020 is 20225225025.

520522522020 is a `hidden beast` number, since 5 + 205 + 2 + 252 + 202 + 0 = 666.

It is a super-2 number, since 2×520522522020² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10112469 + ... + 10163811.

Almost surely, 2^520522522020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520522522020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (796833413376).

520522522020 is an abundant number, since it is smaller than the sum of its proper divisors (1073144304732).

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

520522522020 is a wasteful number, since it uses less digits than its factorization.

520522522020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51882 (or 51877 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

Adding to 520522522020 its reverse (20225225025), we get a palindrome (540747747045).

The spelling of 520522522020 in words is "five hundred twenty billion, five hundred twenty-two million, five hundred twenty-two thousand, twenty".