555055556 has 18 divisors (see below), whose sum is σ = 1067680110. Its totient is φ = 252297760.

The previous prime is 555055547. The next prime is 555055561. The reversal of 555055556 is 655550555.

It can be written as a sum of positive squares in only one way, i.e., 434055556 + 121000000 = 20834^2 + 11000^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 572921 + ... + 573888.

Almost surely, 2^555055556 is an apocalyptic number.

It is an amenable number.

555055556 is a deficient number, since it is larger than the sum of its proper divisors (512624554).

555055556 is a wasteful number, since it uses less digits than its factorization.

555055556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146835 (or 1146822 counting only the distinct ones).

The product of its (nonzero) digits is 468750, while the sum is 41.

The square root of 555055556 is about 23559.6170597062. The cubic root of 555055556 is about 821.8239964320.

The spelling of 555055556 in words is "five hundred fifty-five million, fifty-five thousand, five hundred fifty-six".