523264221 has 12 divisors (see below), whose sum is σ = 780208000. Its totient is φ = 337589640.

The previous prime is 523264187. The next prime is 523264243. The reversal of 523264221 is 122462325.

It is a happy number.

523264221 is a `hidden beast` number, since 5 + 232 + 6 + 422 + 1 = 666.

It is not a de Polignac number, because 523264221 - 2⁹ = 523263709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523264271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 937471 + ... + 938028.

Almost surely, 2^523264221 is an apocalyptic number.

It is an amenable number.

523264221 is a deficient number, since it is larger than the sum of its proper divisors (256943779).

523264221 is a wasteful number, since it uses less digits than its factorization.

523264221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875536 (or 1875533 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 523264221 is about 22874.9693114548. The cubic root of 523264221 is about 805.8242761281.

The spelling of 523264221 in words is "five hundred twenty-three million, two hundred sixty-four thousand, two hundred twenty-one".