520260256 has 24 divisors (see below), whose sum is σ = 1051947540. Its totient is φ = 253099008.

The previous prime is 520260187. The next prime is 520260271. The reversal of 520260256 is 652062025.

It can be written as a sum of positive squares in 2 ways, for example, as 516016656 + 4243600 = 22716^2 + 2060^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218521 + ... + 220888.

Almost surely, 2^520260256 is an apocalyptic number.

It is an amenable number.

520260256 is an abundant number, since it is smaller than the sum of its proper divisors (531687284).

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

520260256 is a wasteful number, since it uses less digits than its factorization.

520260256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439456 (or 439448 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 520260256 is about 22809.2142784446. The cubic root of 520260256 is about 804.2792854969.

The spelling of 520260256 in words is "five hundred twenty million, two hundred sixty thousand, two hundred fifty-six".