555555055503 has 16 divisors (see below), whose sum is σ = 852166447616. Its totient is φ = 315357645600.

The previous prime is 555555055477. The next prime is 555555055541. The reversal of 555555055503 is 305550555555.

555555055503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 555555055503 - 2⁸ = 555555055247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555555055553) 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, 87596176 + ... + 87602517.

It is an arithmetic number, because the mean of its divisors is an integer number (53260402976).

Almost surely, 2^555555055503 is an apocalyptic number.

555555055503 is a deficient number, since it is larger than the sum of its proper divisors (296611392113).

555555055503 is a wasteful number, since it uses less digits than its factorization.

555555055503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175198854.

The product of its (nonzero) digits is 5859375, while the sum is 48.

The spelling of 555555055503 in words is "five hundred fifty-five billion, five hundred fifty-five million, fifty-five thousand, five hundred three".