520551560 has 64 divisors (see below), whose sum is σ = 1245715200. Its totient is φ = 195091456.

The previous prime is 520551527. The next prime is 520551583. The reversal of 520551560 is 65155025.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160919 + ... + 164121.

It is an arithmetic number, because the mean of its divisors is an integer number (19464300).

Almost surely, 2^520551560 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 520551560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622857600).

520551560 is an abundant number, since it is smaller than the sum of its proper divisors (725163640).

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

520551560 is a wasteful number, since it uses less digits than its factorization.

520551560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3470 (or 3466 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 520551560 is about 22815.5990497729. The cubic root of 520551560 is about 804.4293681117.

It can be divided in two parts, 5205 and 51560, that added together give a palindrome (56765).

The spelling of 520551560 in words is "five hundred twenty million, five hundred fifty-one thousand, five hundred sixty".