111610055 has 4 divisors (see below), whose sum is σ = 133932072. Its totient is φ = 89288040.

The previous prime is 111610039. The next prime is 111610061. The reversal of 111610055 is 550016111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550016111 = 1721 ⋅319591.

It is not a de Polignac number, because 111610055 - 2⁴ = 111610039 is a prime.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 11161001 + ... + 11161010.

It is an arithmetic number, because the mean of its divisors is an integer number (33483018).

Almost surely, 2^111610055 is an apocalyptic number.

111610055 is a deficient number, since it is larger than the sum of its proper divisors (22322017).

111610055 is an equidigital number, since it uses as much as digits as its factorization.

111610055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22322016.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 111610055 is about 10564.5660109633. The cubic root of 111610055 is about 481.4683839351.

Adding to 111610055 its reverse (550016111), we get a palindrome (661626166).

The spelling of 111610055 in words is "one hundred eleven million, six hundred ten thousand, fifty-five".