555055111 has 8 divisors (see below), whose sum is σ = 597953664. Its totient is φ = 512185440.

The previous prime is 555055097. The next prime is 555055139. The reversal of 555055111 is 111550555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 555055111 - 2²¹ = 552957959 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 555055111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555055181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48906 + ... + 59176.

It is an arithmetic number, because the mean of its divisors is an integer number (74744208).

Almost surely, 2^555055111 is an apocalyptic number.

555055111 is a deficient number, since it is larger than the sum of its proper divisors (42898553).

555055111 is a wasteful number, since it uses less digits than its factorization.

555055111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14441.

The product of its (nonzero) digits is 3125, while the sum is 28.

The square root of 555055111 is about 23559.6076155780. The cubic root of 555055111 is about 821.8237768073.

The spelling of 555055111 in words is "five hundred fifty-five million, fifty-five thousand, one hundred eleven".