520555323 has 8 divisors (see below), whose sum is σ = 698495248. Its totient is φ = 344826144.

The previous prime is 520555271. The next prime is 520555381. The reversal of 520555323 is 323555025.

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

It is not a de Polignac number, because 520555323 - 2¹⁶ = 520489787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520555223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552136 + ... + 553077.

It is an arithmetic number, because the mean of its divisors is an integer number (87311906).

Almost surely, 2^520555323 is an apocalyptic number.

520555323 is a deficient number, since it is larger than the sum of its proper divisors (177939925).

520555323 is a wasteful number, since it uses less digits than its factorization.

520555323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105373.

The product of its (nonzero) digits is 22500, while the sum is 30.

The square root of 520555323 is about 22815.6815151334. The cubic root of 520555323 is about 804.4313064790.

The spelling of 520555323 in words is "five hundred twenty million, five hundred fifty-five thousand, three hundred twenty-three".