5551544129 has 2 divisors, whose sum is σ = 5551544130. Its totient is φ = 5551544128.

The previous prime is 5551544113. The next prime is 5551544221. The reversal of 5551544129 is 9214451555.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5454561025 + 96983104 = 73855^2 + 9848^2 .

It is a cyclic number.

It is not a de Polignac number, because 5551544129 - 2⁴ = 5551544113 is a prime.

It is not a weakly prime, because it can be changed into another prime (5551544029) 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, 2775772064 + 2775772065.

It is an arithmetic number, because the mean of its divisors is an integer number (2775772065).

Almost surely, 2^5551544129 is an apocalyptic number.

It is an amenable number.

5551544129 is a deficient number, since it is larger than the sum of its proper divisors (1).

5551544129 is an equidigital number, since it uses as much as digits as its factorization.

5551544129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180000, while the sum is 41.

The square root of 5551544129 is about 74508.6849233027. The cubic root of 5551544129 is about 1770.6712349839.

The spelling of 5551544129 in words is "five billion, five hundred fifty-one million, five hundred forty-four thousand, one hundred twenty-nine".