5544421 has 2 divisors, whose sum is σ = 5544422. Its totient is φ = 5544420.

The previous prime is 5544401. The next prime is 5544437. The reversal of 5544421 is 1244455.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3944196 + 1600225 = 1986^2 + 1265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5544421 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5544401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2772210 + 2772211.

It is an arithmetic number, because the mean of its divisors is an integer number (2772211).

Almost surely, 2^5544421 is an apocalyptic number.

It is an amenable number.

5544421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5544421 is an equidigital number, since it uses as much as digits as its factorization.

5544421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3200, while the sum is 25.

The square root of 5544421 is about 2354.6594233562. The cubic root of 5544421 is about 176.9913600856.

Adding to 5544421 its reverse (1244455), we get a palindrome (6788876).

It can be divided in two parts, 55 and 44421, that multiplied together give a triangular number (2443155 = T₂₂₁₀).

The spelling of 5544421 in words is "five million, five hundred forty-four thousand, four hundred twenty-one".