520422565572 has 192 divisors, whose sum is σ = 1665634969600. Its totient is φ = 136838782080.

The previous prime is 520422565571. The next prime is 520422565583. The reversal of 520422565572 is 275565224025.

520422565572 is a `hidden beast` number, since 5 + 2 + 0 + 4 + 22 + 56 + 5 + 572 = 666.

It is not an unprimeable number, because it can be changed into a prime (520422565571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3173079 + ... + 3333057.

Almost surely, 2^520422565572 is an apocalyptic number.

520422565572 is a gapful number since it is divisible by the number (52) 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 520422565572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (832817484800).

520422565572 is an abundant number, since it is smaller than the sum of its proper divisors (1145212404028).

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

520422565572 is a wasteful number, since it uses less digits than its factorization.

520422565572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160343 (or 160335 counting only the distinct ones).

The product of its (nonzero) digits is 1680000, while the sum is 45.

Adding to 520422565572 its reverse (275565224025), we get a palindrome (795987789597).

The spelling of 520422565572 in words is "five hundred twenty billion, four hundred twenty-two million, five hundred sixty-five thousand, five hundred seventy-two".