556550555 has 16 divisors (see below), whose sum is σ = 729381888. Its totient is φ = 404316000.

The previous prime is 556550551. The next prime is 556550563. The reversal of 556550555 is 555055655.

It is not a de Polignac number, because 556550555 - 2² = 556550551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556550551) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 49400 + ... + 59610.

It is an arithmetic number, because the mean of its divisors is an integer number (45586368).

Almost surely, 2^556550555 is an apocalyptic number.

556550555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556550555 is a deficient number, since it is larger than the sum of its proper divisors (172831333).

556550555 is a wasteful number, since it uses less digits than its factorization.

556550555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11218.

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

The square root of 556550555 is about 23591.3237229283. The cubic root of 556550555 is about 822.5611746704.

The spelling of 556550555 in words is "five hundred fifty-six million, five hundred fifty thousand, five hundred fifty-five".