520055240 has 32 divisors (see below), whose sum is σ = 1181494080. Its totient is φ = 206000832.

The previous prime is 520055209. The next prime is 520055269. The reversal of 520055240 is 42550025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58994 + ... + 67233.

It is an arithmetic number, because the mean of its divisors is an integer number (36921690).

Almost surely, 2^520055240 is an apocalyptic number.

It is an amenable number.

520055240 is an abundant number, since it is smaller than the sum of its proper divisors (661438840).

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

520055240 is a wasteful number, since it uses less digits than its factorization.

520055240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126341 (or 126337 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 520055240 is about 22804.7196869420. The cubic root of 520055240 is about 804.1736256956.

The spelling of 520055240 in words is "five hundred twenty million, fifty-five thousand, two hundred forty".