520304055 has 16 divisors (see below), whose sum is σ = 836849664. Its totient is φ = 276041120.

The previous prime is 520304047. The next prime is 520304087. The reversal of 520304055 is 550403025.

It is not a de Polignac number, because 520304055 - 2³ = 520304047 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 87939 + ... + 93668.

It is an arithmetic number, because the mean of its divisors is an integer number (52303104).

Almost surely, 2^520304055 is an apocalyptic number.

520304055 is a deficient number, since it is larger than the sum of its proper divisors (316545609).

520304055 is a wasteful number, since it uses less digits than its factorization.

520304055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181806.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 520304055 is about 22810.1743746075. The cubic root of 520304055 is about 804.3018547396.

The spelling of 520304055 in words is "five hundred twenty million, three hundred four thousand, fifty-five".