523235321 has 4 divisors (see below), whose sum is σ = 597983232. Its totient is φ = 448487412.

The previous prime is 523235263. The next prime is 523235327. The reversal of 523235321 is 123532325.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 523235321 - 2¹⁰ = 523234297 is a prime.

It is a super-2 number, since 2×523235321² = 547550402283946082, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (523235327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37373945 + ... + 37373958.

It is an arithmetic number, because the mean of its divisors is an integer number (149495808).

Almost surely, 2^523235321 is an apocalyptic number.

It is an amenable number.

523235321 is a deficient number, since it is larger than the sum of its proper divisors (74747911).

523235321 is an equidigital number, since it uses as much as digits as its factorization.

523235321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74747910.

The product of its digits is 5400, while the sum is 26.

The square root of 523235321 is about 22874.3376078959. The cubic root of 523235321 is about 805.8094405700.

Adding to 523235321 its reverse (123532325), we get a palindrome (646767646).

The spelling of 523235321 in words is "five hundred twenty-three million, two hundred thirty-five thousand, three hundred twenty-one".