5558278409 has 2 divisors, whose sum is σ = 5558278410. Its totient is φ = 5558278408.

The previous prime is 5558278387. The next prime is 5558278433. The reversal of 5558278409 is 9048728555.

5558278409 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5318493184 + 239785225 = 72928^2 + 15485^2 .

It is a cyclic number.

It is not a de Polignac number, because 5558278409 - 2²⁰ = 5557229833 is a prime.

It is not a weakly prime, because it can be changed into another prime (5558278499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2779139204 + 2779139205.

It is an arithmetic number, because the mean of its divisors is an integer number (2779139205).

Almost surely, 2^5558278409 is an apocalyptic number.

It is an amenable number.

5558278409 is a deficient number, since it is larger than the sum of its proper divisors (1).

5558278409 is an equidigital number, since it uses as much as digits as its factorization.

5558278409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032000, while the sum is 53.

The square root of 5558278409 is about 74553.8624686877. The cubic root of 5558278409 is about 1771.3869144009.

The spelling of 5558278409 in words is "five billion, five hundred fifty-eight million, two hundred seventy-eight thousand, four hundred nine".