520045256 has 16 divisors (see below), whose sum is σ = 976044300. Its totient is φ = 259766784.

The previous prime is 520045199. The next prime is 520045259. The reversal of 520045256 is 652540025.

It can be written as a sum of positive squares in 2 ways, for example, as 442429156 + 77616100 = 21034^2 + 8810^2 .

It is not an unprimeable number, because it can be changed into a prime (520045259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23201 + ... + 39728.

Almost surely, 2^520045256 is an apocalyptic number.

It is an amenable number.

520045256 is a deficient number, since it is larger than the sum of its proper divisors (455999044).

520045256 is a wasteful number, since it uses less digits than its factorization.

520045256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63968 (or 63964 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 520045256 is about 22804.5007838365. The cubic root of 520045256 is about 804.1684794981.

The spelling of 520045256 in words is "five hundred twenty million, forty-five thousand, two hundred fifty-six".