520228250 has 16 divisors (see below), whose sum is σ = 973867752. Its totient is φ = 208091200.

The previous prime is 520228217. The next prime is 520228277. The reversal of 520228250 is 52822025.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 170276401 + 349951849 = 13049^2 + 18707^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1040207 + ... + 1040706.

Almost surely, 2^520228250 is an apocalyptic number.

520228250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

520228250 is a deficient number, since it is larger than the sum of its proper divisors (453639502).

520228250 is a wasteful number, since it uses less digits than its factorization.

520228250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080930 (or 2080920 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 520228250 is about 22808.5126652309. The cubic root of 520228250 is about 804.2627922832.

The spelling of 520228250 in words is "five hundred twenty million, two hundred twenty-eight thousand, two hundred fifty".