5450221 has 6 divisors (see below), whose sum is σ = 6340110. Its totient is φ = 4671576.

The previous prime is 5450219. The next prime is 5450227. The reversal of 5450221 is 1220545.

It can be written as a sum of positive squares in only one way, i.e., 4708900 + 741321 = 2170^2 + 861^2 .

It is not a de Polignac number, because 5450221 - 2¹ = 5450219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5450227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55566 + ... + 55663.

It is an arithmetic number, because the mean of its divisors is an integer number (1056685).

Almost surely, 2^5450221 is an apocalyptic number.

It is an amenable number.

5450221 is a deficient number, since it is larger than the sum of its proper divisors (889889).

5450221 is a wasteful number, since it uses less digits than its factorization.

5450221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111243 (or 111236 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 5450221 is about 2334.5708385054. The cubic root of 5450221 is about 175.9832650238.

Adding to 5450221 its reverse (1220545), we get a palindrome (6670766).

It can be divided in two parts, 5450 and 221, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 5450221 in words is "five million, four hundred fifty thousand, two hundred twenty-one".