5555555555 has 32 divisors (see below), whose sum is σ = 7478424576. Its totient is φ = 3926880000.

The previous prime is 5555555519. The next prime is 5555555557.

5555555555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5555555555 - 2¹² = 5555551459 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a Duffinian number.

5555555555 is a modest number, since divided by 555555 gives 5555 as remainder.

5555555555 is a nontrivial repdigit in base 10.

It is a plaindrome in base 10.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (5555555557) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 606560 + ... + 615650.

It is an arithmetic number, because the mean of its divisors is an integer number (233700768).

Almost surely, 2^5555555555 is an apocalyptic number.

5555555555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5555555555 is a deficient number, since it is larger than the sum of its proper divisors (1922869021).

5555555555 is a wasteful number, since it uses less digits than its factorization.

5555555555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9419.

The product of its digits is 9765625, while the sum is 50.

The square root of 5555555555 is about 74535.5992462662. The cubic root of 5555555555 is about 1771.0976152453.

The spelling of 5555555555 in words is "five billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred fifty-five".