520886520 has 768 divisors, whose sum is σ = 2372198400. Its totient is φ = 95800320.

The previous prime is 520886519. The next prime is 520886533. The reversal of 520886520 is 25688025.

520886520 is a `hidden beast` number, since 52 + 0 + 8 + 86 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 12113619 + ... + 12113661.

It is an arithmetic number, because the mean of its divisors is an integer number (3088800).

Almost surely, 2^520886520 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 520886520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1186099200).

520886520 is an abundant number, since it is smaller than the sum of its proper divisors (1851311880).

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

520886520 is a wasteful number, since it uses less digits than its factorization.

520886520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 520886520 is about 22822.9384611185. The cubic root of 520886520 is about 804.6018735256.

The spelling of 520886520 in words is "five hundred twenty million, eight hundred eighty-six thousand, five hundred twenty".