555117055 has 4 divisors (see below), whose sum is σ = 666140472. Its totient is φ = 444093640.

The previous prime is 555117049. The next prime is 555117077. The reversal of 555117055 is 550711555.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 555117055 - 2⁵ = 555117023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 555117055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55511701 + ... + 55511710.

It is an arithmetic number, because the mean of its divisors is an integer number (166535118).

Almost surely, 2^555117055 is an apocalyptic number.

555117055 is a deficient number, since it is larger than the sum of its proper divisors (111023417).

555117055 is a wasteful number, since it uses less digits than its factorization.

555117055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111023416.

The product of its (nonzero) digits is 21875, while the sum is 34.

The square root of 555117055 is about 23560.9222018154. The cubic root of 555117055 is about 821.8543474404.

The spelling of 555117055 in words is "five hundred fifty-five million, one hundred seventeen thousand, fifty-five".