111000055 has 16 divisors (see below), whose sum is σ = 141372000. Its totient is φ = 83377152.

The previous prime is 111000031. The next prime is 111000061. The reversal of 111000055 is 550000111.

It is a cyclic number.

It is not a de Polignac number, because 111000055 - 2¹⁹ = 110475767 is a prime.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 110999999 and 111000044.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41107 + ... + 43723.

It is an arithmetic number, because the mean of its divisors is an integer number (8835750).

Almost surely, 2^111000055 is an apocalyptic number.

111000055 is a deficient number, since it is larger than the sum of its proper divisors (30371945).

111000055 is a wasteful number, since it uses less digits than its factorization.

111000055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138.

The product of its (nonzero) digits is 25, while the sum is 13.

The square root of 111000055 is about 10535.6563630369. The cubic root of 111000055 is about 480.5896327472.

Adding to 111000055 its reverse (550000111), we get a palindrome (661000166).

The spelling of 111000055 in words is "one hundred eleven million, fifty-five", and thus it is an aban number.