556000555 has 16 divisors (see below), whose sum is σ = 770671584. Its totient is φ = 380577280.

The previous prime is 556000541. The next prime is 556000561. The reversal of 556000555 is 555000655.

It is not a de Polignac number, because 556000555 - 2²¹ = 553903403 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296392 + ... + 298261.

It is an arithmetic number, because the mean of its divisors is an integer number (48166974).

Almost surely, 2^556000555 is an apocalyptic number.

556000555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556000555 is a deficient number, since it is larger than the sum of its proper divisors (214671029).

556000555 is a wasteful number, since it uses less digits than its factorization.

556000555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594686.

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 556000555 is about 23579.6640137217. The cubic root of 556000555 is about 822.2901254657.

The spelling of 556000555 in words is "five hundred fifty-six million, five hundred fifty-five", and thus it is an aban number.