520322023 has 4 divisors (see below), whose sum is σ = 560346808. Its totient is φ = 480297240.

The previous prime is 520321993. The next prime is 520322051. The reversal of 520322023 is 320223025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 520322023 - 2²⁵ = 486767591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520322053) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20012373 + ... + 20012398.

It is an arithmetic number, because the mean of its divisors is an integer number (140086702).

Almost surely, 2^520322023 is an apocalyptic number.

520322023 is a deficient number, since it is larger than the sum of its proper divisors (40024785).

520322023 is a wasteful number, since it uses less digits than its factorization.

520322023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40024784.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 520322023 is about 22810.5682305374. The cubic root of 520322023 is about 804.3111131269.

Adding to 520322023 its reverse (320223025), we get a palindrome (840545048).

The spelling of 520322023 in words is "five hundred twenty million, three hundred twenty-two thousand, twenty-three".