5558639904 has 60 divisors (see below), whose sum is σ = 16347813174. Its totient is φ = 1852879104.

The previous prime is 5558639897. The next prime is 5558639921. The reversal of 5558639904 is 4099368555.

It is a happy number.

5558639904 is a `hidden beast` number, since 55 + 586 + 3 + 9 + 9 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5473040400 + 85599504 = 73980^2 + 9252^2 .

It is a super-2 number, since 2×5558639904² = 61796955164682258432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1069677 + ... + 1074860.

Almost surely, 2^5558639904 is an apocalyptic number.

5558639904 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

5558639904 is an abundant number, since it is smaller than the sum of its proper divisors (10789173270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5558639904 is a wasteful number, since it uses less digits than its factorization.

5558639904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144559 (or 2144542 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 54.

The square root of 5558639904 is about 74556.2868174106. The cubic root of 5558639904 is about 1771.4253155978.

The spelling of 5558639904 in words is "five billion, five hundred fifty-eight million, six hundred thirty-nine thousand, nine hundred four".