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5544221 is a prime number
BaseRepresentation
bin10101001001100100011101
3101102200020112
4111021210131
52404403341
6314455405
765060624
oct25114435
911380215
105544221
113147501
121a34565
1311c1707
14a446bb
15747aeb
hex54991d

5544221 has 2 divisors, whose sum is σ = 5544222. Its totient is φ = 5544220.

The previous prime is 5544179. The next prime is 5544223. The reversal of 5544221 is 1224455.

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., 4778596 + 765625 = 2186^2 + 875^2 .

It is a cyclic number.

It is not a de Polignac number, because 5544221 - 222 = 1349917 is a prime.

Together with 5544223, it forms a pair of twin primes.

It is a Chen 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 (5544223) 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 as a sum of consecutive naturals, namely, 2772110 + 2772111.

It is an arithmetic number, because the mean of its divisors is an integer number (2772111).

Almost surely, 25544221 is an apocalyptic number.

It is an amenable number.

5544221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5544221 is an equidigital number, since it uses as much as digits as its factorization.

5544221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1600, while the sum is 23.

The square root of 5544221 is about 2354.6169539864. The cubic root of 5544221 is about 176.9892318984.

Adding to 5544221 its reverse (1224455), we get a palindrome (6768676).

The spelling of 5544221 in words is "five million, five hundred forty-four thousand, two hundred twenty-one".