555555155 has 16 divisors (see below), whose sum is σ = 743035680. Its totient is φ = 396283392.

The previous prime is 555555131. The next prime is 555555167. The reversal of 555555155 is 551555555.

It is a cyclic number.

It is not a de Polignac number, because 555555155 - 2¹⁶ = 555489619 is a prime.

It is a nude number because it is divisible by every one of its digits.

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 15 ways as a sum of consecutive naturals, for example, 170384 + ... + 173613.

It is an arithmetic number, because the mean of its divisors is an integer number (46439730).

Almost surely, 2^555555155 is an apocalyptic number.

555555155 is a deficient number, since it is larger than the sum of its proper divisors (187480525).

555555155 is a wasteful number, since it uses less digits than its factorization.

555555155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344038.

The product of its digits is 390625, while the sum is 41.

The square root of 555555155 is about 23570.2175424836. The cubic root of 555555155 is about 822.0704938725.

The spelling of 555555155 in words is "five hundred fifty-five million, five hundred fifty-five thousand, one hundred fifty-five".