45563221 has 8 divisors (see below), whose sum is σ = 50198688. Its totient is φ = 41010000.

The previous prime is 45563209. The next prime is 45563251. The reversal of 45563221 is 12236554.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45563221 - 2⁹ = 45562709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45563221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45563251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19395 + ... + 21616.

It is an arithmetic number, because the mean of its divisors is an integer number (6274836).

Almost surely, 2^45563221 is an apocalyptic number.

It is an amenable number.

45563221 is a deficient number, since it is larger than the sum of its proper divisors (4635467).

45563221 is a wasteful number, since it uses less digits than its factorization.

45563221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41123.

The product of its digits is 7200, while the sum is 28.

The square root of 45563221 is about 6750.0534071961. The cubic root of 45563221 is about 357.1671206601.

Adding to 45563221 its reverse (12236554), we get a palindrome (57799775).

It can be divided in two parts, 4556 and 3221, that added together give a palindrome (7777).

The spelling of 45563221 in words is "forty-five million, five hundred sixty-three thousand, two hundred twenty-one".