520939023 has 64 divisors (see below), whose sum is σ = 810196992. Its totient is φ = 294900480.

The previous prime is 520939019. The next prime is 520939073. The reversal of 520939023 is 320939025.

It is not a de Polignac number, because 520939023 - 2² = 520939019 is a prime.

It is a super-3 number, since 3×520939023³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520939073) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4868536 + ... + 4868642.

It is an arithmetic number, because the mean of its divisors is an integer number (12659328).

Almost surely, 2^520939023 is an apocalyptic number.

520939023 is a deficient number, since it is larger than the sum of its proper divisors (289257969).

520939023 is a wasteful number, since it uses less digits than its factorization.

520939023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 520939023 is about 22824.0886565050. The cubic root of 520939023 is about 804.6289060245.

It can be divided in two parts, 52093 and 9023, that added together give a palindrome (61116).

The spelling of 520939023 in words is "five hundred twenty million, nine hundred thirty-nine thousand, twenty-three".