520065355 has 8 divisors (see below), whose sum is σ = 627908112. Its totient is φ = 413499168.

The previous prime is 520065317. The next prime is 520065373. The reversal of 520065355 is 553560025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520065355 - 2⁹ = 520064843 is a prime.

It is a Duffinian number.

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, 318244 + ... + 319873.

It is an arithmetic number, because the mean of its divisors is an integer number (78488514).

Almost surely, 2^520065355 is an apocalyptic number.

520065355 is a deficient number, since it is larger than the sum of its proper divisors (107842757).

520065355 is a wasteful number, since it uses less digits than its factorization.

520065355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638285.

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 520065355 is about 22804.9414601310. The cubic root of 520065355 is about 804.1788393491.

The spelling of 520065355 in words is "five hundred twenty million, sixty-five thousand, three hundred fifty-five".