5555505555 has 16 divisors (see below), whose sum is σ = 9876454560. Its totient is φ = 2962936224.

The previous prime is 5555505533. The next prime is 5555505559. The reversal of 5555505555 is 5555055555.

5555505555 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 5555505555 - 2⁷ = 5555505427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 5555505555.

It is not an unprimeable number, because it can be changed into a prime (5555505559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20575812 + ... + 20576081.

It is an arithmetic number, because the mean of its divisors is an integer number (617278410).

Almost surely, 2^5555505555 is an apocalyptic number.

5555505555 is a deficient number, since it is larger than the sum of its proper divisors (4320949005).

5555505555 is a wasteful number, since it uses less digits than its factorization.

5555505555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41151907 (or 41151901 counting only the distinct ones).

The product of its (nonzero) digits is 1953125, while the sum is 45.

The square root of 5555505555 is about 74535.2638353149. The cubic root of 5555505555 is about 1771.0923019365.

The spelling of 5555505555 in words is "five billion, five hundred fifty-five million, five hundred five thousand, five hundred fifty-five".