5558555805 has 16 divisors (see below), whose sum is σ = 9702206784. Its totient is φ = 2695057280.

The previous prime is 5558555753. The next prime is 5558555813. The reversal of 5558555805 is 5085558555.

It is not a de Polignac number, because 5558555805 - 2⁶ = 5558555741 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16843944 + ... + 16844273.

It is an arithmetic number, because the mean of its divisors is an integer number (606387924).

Almost surely, 2^5558555805 is an apocalyptic number.

5558555805 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5558555805 is a deficient number, since it is larger than the sum of its proper divisors (4143650979).

5558555805 is a wasteful number, since it uses less digits than its factorization.

5558555805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33688236.

The product of its (nonzero) digits is 5000000, while the sum is 51.

The square root of 5558555805 is about 74555.7228185738. The cubic root of 5558555805 is about 1771.4163820066.

The spelling of 5558555805 in words is "five billion, five hundred fifty-eight million, five hundred fifty-five thousand, eight hundred five".