523228291 has 4 divisors (see below), whose sum is σ = 523761552. Its totient is φ = 522695032.

The previous prime is 523228283. The next prime is 523228301. The reversal of 523228291 is 192822325.

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 523228291 - 2³ = 523228283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523228271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265156 + ... + 267121.

It is an arithmetic number, because the mean of its divisors is an integer number (130940388).

Almost surely, 2^523228291 is an apocalyptic number.

523228291 is a deficient number, since it is larger than the sum of its proper divisors (533261).

523228291 is an equidigital number, since it uses as much as digits as its factorization.

523228291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533260.

The product of its digits is 17280, while the sum is 34.

The square root of 523228291 is about 22874.1839417278. The cubic root of 523228291 is about 805.8058316993.

The spelling of 523228291 in words is "five hundred twenty-three million, two hundred twenty-eight thousand, two hundred ninety-one".