6555555554 has 16 divisors (see below), whose sum is σ = 10153278720. Its totient is φ = 3171186480.

The previous prime is 6555555553. The next prime is 6555555557. The reversal of 6555555554 is 4555555556.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (6555555553) by changing a digit.

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

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259037 + ... + 283215.

It is an arithmetic number, because the mean of its divisors is an integer number (634579920).

Almost surely, 2^6555555554 is an apocalyptic number.

6555555554 is a deficient number, since it is larger than the sum of its proper divisors (3597723166).

6555555554 is a wasteful number, since it uses less digits than its factorization.

6555555554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28585.

The product of its digits is 9375000, while the sum is 50.

The square root of 6555555554 is about 80966.3853336679. The cubic root of 6555555554 is about 1871.5574691858.

The spelling of 6555555554 in words is "six billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred fifty-four".