523322281 has 2 divisors, whose sum is σ = 523322282. Its totient is φ = 523322280.

The previous prime is 523322279. The next prime is 523322311. The reversal of 523322281 is 182223325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 399200400 + 124121881 = 19980^2 + 11141^2 .

It is a cyclic number.

It is not a de Polignac number, because 523322281 - 2¹ = 523322279 is a prime.

It is a super-2 number, since 2×523322281² = 547732419582085922, which contains 22 as substring.

Together with 523322279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (523326281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261661140 + 261661141.

It is an arithmetic number, because the mean of its divisors is an integer number (261661141).

Almost surely, 2^523322281 is an apocalyptic number.

It is an amenable number.

523322281 is a deficient number, since it is larger than the sum of its proper divisors (1).

523322281 is an equidigital number, since it uses as much as digits as its factorization.

523322281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 523322281 is about 22876.2383489944. The cubic root of 523322281 is about 805.8540790621.

The spelling of 523322281 in words is "five hundred twenty-three million, three hundred twenty-two thousand, two hundred eighty-one".