5554500121 has 2 divisors, whose sum is σ = 5554500122. Its totient is φ = 5554500120.

The previous prime is 5554500079. The next prime is 5554500143. The reversal of 5554500121 is 1210054555.

5554500121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2926810000 + 2627690121 = 54100^2 + 51261^2 .

It is a cyclic number.

It is not a de Polignac number, because 5554500121 - 2¹¹ = 5554498073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5554500121.

It is not a weakly prime, because it can be changed into another prime (5554500221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777250060 + 2777250061.

It is an arithmetic number, because the mean of its divisors is an integer number (2777250061).

Almost surely, 2^5554500121 is an apocalyptic number.

It is an amenable number.

5554500121 is a deficient number, since it is larger than the sum of its proper divisors (1).

5554500121 is an equidigital number, since it uses as much as digits as its factorization.

5554500121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 5554500121 is about 74528.5188434602. The cubic root of 5554500121 is about 1770.9854515437.

Adding to 5554500121 its reverse (1210054555), we get a palindrome (6764554676).

The spelling of 5554500121 in words is "five billion, five hundred fifty-four million, five hundred thousand, one hundred twenty-one".