520675506 has 128 divisors (see below), whose sum is σ = 1327872000. Its totient is φ = 149905728.

The previous prime is 520675501. The next prime is 520675537. The reversal of 520675506 is 605576025.

It is a super-2 number, since 2×520675506² = 542205965096712072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520675501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1373625 + ... + 1374003.

It is an arithmetic number, because the mean of its divisors is an integer number (10374000).

Almost surely, 2^520675506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520675506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663936000).

520675506 is an abundant number, since it is smaller than the sum of its proper divisors (807196494).

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

520675506 is a wasteful number, since it uses less digits than its factorization.

520675506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 520675506 is about 22818.3151437612. The cubic root of 520675506 is about 804.4932092997.

The spelling of 520675506 in words is "five hundred twenty million, six hundred seventy-five thousand, five hundred six".