5546221 has 4 divisors (see below), whose sum is σ = 5737500. Its totient is φ = 5354944.

The previous prime is 5546209. The next prime is 5546249. The reversal of 5546221 is 1226455.

5546221 = T₄₀₈ + T₄₀₉ + ... + T₄₆₅.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1226455 = 5 ⋅245291.

It can be written as a sum of positive squares in 2 ways, for example, as 2941225 + 2604996 = 1715^2 + 1614^2 .

It is a cyclic number.

It is not a de Polignac number, because 5546221 - 2¹⁷ = 5415149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5546201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95596 + ... + 95653.

It is an arithmetic number, because the mean of its divisors is an integer number (1434375).

Almost surely, 2^5546221 is an apocalyptic number.

It is an amenable number.

5546221 is a deficient number, since it is larger than the sum of its proper divisors (191279).

5546221 is a wasteful number, since it uses less digits than its factorization.

5546221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191278.

The product of its digits is 2400, while the sum is 25.

The square root of 5546221 is about 2355.0416132205. The cubic root of 5546221 is about 177.0105114678.

The spelling of 5546221 in words is "five million, five hundred forty-six thousand, two hundred twenty-one".