520504255 has 16 divisors (see below), whose sum is σ = 640003680. Its totient is φ = 406227328.

The previous prime is 520504253. The next prime is 520504279. The reversal of 520504255 is 552405025.

It is a cyclic number.

It is not a de Polignac number, because 520504255 - 2¹ = 520504253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520504253) 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 15 ways as a sum of consecutive naturals, for example, 41949 + ... + 52921.

It is an arithmetic number, because the mean of its divisors is an integer number (40000230).

Almost surely, 2^520504255 is an apocalyptic number.

520504255 is a deficient number, since it is larger than the sum of its proper divisors (119499425).

520504255 is a wasteful number, since it uses less digits than its factorization.

520504255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11210.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 520504255 is about 22814.5623451339. The cubic root of 520504255 is about 804.4049999306.

The spelling of 520504255 in words is "five hundred twenty million, five hundred four thousand, two hundred fifty-five".