45502221 has 8 divisors (see below), whose sum is σ = 61113024. Its totient is φ = 30113120.

The previous prime is 45502201. The next prime is 45502231. The reversal of 45502221 is 12220554.

It is a happy number.

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 45502221 - 2¹⁴ = 45485837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45502201) 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, 54945 + ... + 55766.

It is an arithmetic number, because the mean of its divisors is an integer number (7639128).

Almost surely, 2^45502221 is an apocalyptic number.

It is an amenable number.

45502221 is a deficient number, since it is larger than the sum of its proper divisors (15610803).

45502221 is a wasteful number, since it uses less digits than its factorization.

45502221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110851.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 45502221 is about 6745.5334110803. The cubic root of 45502221 is about 357.0076578009.

Adding to 45502221 its reverse (12220554), we get a palindrome (57722775).

The spelling of 45502221 in words is "forty-five million, five hundred two thousand, two hundred twenty-one".