555555550505 has 24 divisors (see below), whose sum is σ = 715201113240. Its totient is φ = 414158950400.

The previous prime is 555555550483. The next prime is 555555550553. The reversal of 555555550505 is 505055555555.

It can be written as a sum of positive squares in 12 ways, for example, as 12228821056 + 543326729449 = 110584^2 + 737107^2 .

It is not a de Polignac number, because 555555550505 - 2²⁸ = 555287115049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1757360 + ... + 2049249.

It is an arithmetic number, because the mean of its divisors is an integer number (29800046385).

Almost surely, 2^555555550505 is an apocalyptic number.

It is an amenable number.

555555550505 is a deficient number, since it is larger than the sum of its proper divisors (159645562735).

555555550505 is a wasteful number, since it uses less digits than its factorization.

555555550505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3806749 (or 3806732 counting only the distinct ones).

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

The spelling of 555555550505 in words is "five hundred fifty-five billion, five hundred fifty-five million, five hundred fifty thousand, five hundred five".