520823373 has 24 divisors (see below), whose sum is σ = 843076032. Its totient is φ = 280103424.

The previous prime is 520823363. The next prime is 520823377. The reversal of 520823373 is 373328025.

It is not a de Polignac number, because 520823373 - 2¹⁰ = 520822349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520823377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36840 + ... + 48977.

It is an arithmetic number, because the mean of its divisors is an integer number (35128168).

Almost surely, 2^520823373 is an apocalyptic number.

It is an amenable number.

520823373 is a deficient number, since it is larger than the sum of its proper divisors (322252659).

520823373 is a wasteful number, since it uses less digits than its factorization.

520823373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85861 (or 85844 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 520823373 is about 22821.5550083687. Note that the first 3 decimals coincide. The cubic root of 520823373 is about 804.5693582874.

It can be divided in two parts, 52082 and 3373, that added together give a palindrome (55455).

The spelling of 520823373 in words is "five hundred twenty million, eight hundred twenty-three thousand, three hundred seventy-three".