5544221401 has 2 divisors, whose sum is σ = 5544221402. Its totient is φ = 5544221400.

The previous prime is 5544221399. The next prime is 5544221429. The reversal of 5544221401 is 1041224455.

It is an a-pointer prime, because the next prime (5544221429) can be obtained adding 5544221401 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3016645776 + 2527575625 = 54924^2 + 50275^2 .

It is a cyclic number.

It is not a de Polignac number, because 5544221401 - 2¹ = 5544221399 is a prime.

Together with 5544221399, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 5544221401.

It is not a weakly prime, because it can be changed into another prime (5544221701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2772110700 + 2772110701.

It is an arithmetic number, because the mean of its divisors is an integer number (2772110701).

Almost surely, 2^5544221401 is an apocalyptic number.

It is an amenable number.

5544221401 is a deficient number, since it is larger than the sum of its proper divisors (1).

5544221401 is an equidigital number, since it uses as much as digits as its factorization.

5544221401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 5544221401 is about 74459.5286111858. The cubic root of 5544221401 is about 1769.8923616542.

Adding to 5544221401 its reverse (1041224455), we get a palindrome (6585445856).

The spelling of 5544221401 in words is "five billion, five hundred forty-four million, two hundred twenty-one thousand, four hundred one".