5557889989 has 2 divisors, whose sum is σ = 5557889990. Its totient is φ = 5557889988.

The previous prime is 5557889983. The next prime is 5557889999. The reversal of 5557889989 is 9899887555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5557702500 + 187489 = 74550^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 5557889989 - 2¹¹ = 5557887941 is a prime.

It is a super-2 number, since 2×5557889989² = 61780282259652840242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5557889983) 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, 2778944994 + 2778944995.

It is an arithmetic number, because the mean of its divisors is an integer number (2778944995).

Almost surely, 2^5557889989 is an apocalyptic number.

It is an amenable number.

5557889989 is a deficient number, since it is larger than the sum of its proper divisors (1).

5557889989 is an equidigital number, since it uses as much as digits as its factorization.

5557889989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592000, while the sum is 73.

The square root of 5557889989 is about 74551.2574608906. The cubic root of 5557889989 is about 1771.3456511366.

The spelling of 5557889989 in words is "five billion, five hundred fifty-seven million, eight hundred eighty-nine thousand, nine hundred eighty-nine".