555005555 has 32 divisors (see below), whose sum is σ = 751607808. Its totient is φ = 390614400.

The previous prime is 555005533. The next prime is 555005557. The reversal of 555005555 is 555500555.

It is not a de Polignac number, because 555005555 - 2⁶ = 555005491 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (555005557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132950 + ... + 137060.

It is an arithmetic number, because the mean of its divisors is an integer number (23487744).

Almost surely, 2^555005555 is an apocalyptic number.

555005555 is a deficient number, since it is larger than the sum of its proper divisors (196602253).

555005555 is a wasteful number, since it uses less digits than its factorization.

555005555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4227.

The product of its (nonzero) digits is 78125, while the sum is 35.

The square root of 555005555 is about 23558.5558767935. Note that the first 3 decimals coincide. The cubic root of 555005555 is about 821.7993182683.

The spelling of 555005555 in words is "five hundred fifty-five million, five thousand, five hundred fifty-five".