5544021 has 16 divisors (see below), whose sum is σ = 8492544. Its totient is φ = 3151344.

The previous prime is 5544001. The next prime is 5544031. The reversal of 5544021 is 1204455.

It is not a de Polignac number, because 5544021 - 2¹¹ = 5541973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5544001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4186 + ... + 5348.

It is an arithmetic number, because the mean of its divisors is an integer number (530784).

Almost surely, 2^5544021 is an apocalyptic number.

It is an amenable number.

5544021 is a deficient number, since it is larger than the sum of its proper divisors (2948523).

5544021 is a wasteful number, since it uses less digits than its factorization.

5544021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400.

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

The square root of 5544021 is about 2354.5744838505. The cubic root of 5544021 is about 176.9871036600.

Adding to 5544021 its reverse (1204455), we get a palindrome (6748476).

The spelling of 5544021 in words is "five million, five hundred forty-four thousand, twenty-one".