5558999639 has 6 divisors (see below), whose sum is σ = 5744107800. Its totient is φ = 5379676140.

The previous prime is 5558999627. The next prime is 5558999657. The reversal of 5558999639 is 9369998555.

5558999639 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5558999639 - 2²⁸ = 5290564183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5558993639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2891339 + ... + 2893260.

It is an arithmetic number, because the mean of its divisors is an integer number (957351300).

Almost surely, 2^5558999639 is an apocalyptic number.

5558999639 is a deficient number, since it is larger than the sum of its proper divisors (185108161).

5558999639 is an equidigital number, since it uses as much as digits as its factorization.

5558999639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5784661 (or 5784630 counting only the distinct ones).

The product of its digits is 118098000, while the sum is 68.

The square root of 5558999639 is about 74558.6992845235. The cubic root of 5558999639 is about 1771.4635281792.

The spelling of 5558999639 in words is "five billion, five hundred fifty-eight million, nine hundred ninety-nine thousand, six hundred thirty-nine".