563284221 has 4 divisors (see below), whose sum is σ = 751045632. Its totient is φ = 375522812.

The previous prime is 563284213. The next prime is 563284223. The reversal of 563284221 is 122482365.

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 563284221 - 2³ = 563284213 is a prime.

It is a super-2 number, since 2×563284221² = 634578227255153682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563284223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93880701 + ... + 93880706.

It is an arithmetic number, because the mean of its divisors is an integer number (187761408).

Almost surely, 2^563284221 is an apocalyptic number.

It is an amenable number.

563284221 is a deficient number, since it is larger than the sum of its proper divisors (187761411).

563284221 is a wasteful number, since it uses less digits than its factorization.

563284221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187761410.

The product of its digits is 23040, while the sum is 33.

The square root of 563284221 is about 23733.6095232057. The cubic root of 563284221 is about 825.8652549268.

The spelling of 563284221 in words is "five hundred sixty-three million, two hundred eighty-four thousand, two hundred twenty-one".