111100055 has 8 divisors (see below), whose sum is σ = 145440144. Its totient is φ = 80800000.

The previous prime is 111100027. The next prime is 111100061. The reversal of 111100055 is 550001111.

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

It is not a de Polignac number, because 111100055 - 2¹⁸ = 110837911 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009946 + ... + 1010055.

It is an arithmetic number, because the mean of its divisors is an integer number (18180018).

Almost surely, 2^111100055 is an apocalyptic number.

111100055 is a deficient number, since it is larger than the sum of its proper divisors (34340089).

111100055 is a wasteful number, since it uses less digits than its factorization.

111100055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020017.

The product of its (nonzero) digits is 25, while the sum is 14.

The square root of 111100055 is about 10540.4010834503. The cubic root of 111100055 is about 480.7339105687.

Adding to 111100055 its reverse (550001111), we get a palindrome (661101166).

The spelling of 111100055 in words is "one hundred eleven million, one hundred thousand, fifty-five".