5550556004989 has 2 divisors, whose sum is σ = 5550556004990. Its totient is φ = 5550556004988.

The previous prime is 5550556004977. The next prime is 5550556005083. The reversal of 5550556004989 is 9894006550555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5031421344889 + 519134660100 = 2243083^2 + 720510^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5550556004989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5550556004789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775278002494 + 2775278002495.

It is an arithmetic number, because the mean of its divisors is an integer number (2775278002495).

Almost surely, 2^{5550556004989} is an apocalyptic number.

It is an amenable number.

5550556004989 is a deficient number, since it is larger than the sum of its proper divisors (1).

5550556004989 is an equidigital number, since it uses as much as digits as its factorization.

5550556004989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600000, while the sum is 61.

The spelling of 5550556004989 in words is "five trillion, five hundred fifty billion, five hundred fifty-six million, four thousand, nine hundred eighty-nine".