1105555655 has 4 divisors (see below), whose sum is σ = 1326666792. Its totient is φ = 884444520.

The previous prime is 1105555637. The next prime is 1105555669. The reversal of 1105555655 is 5565555011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5565555011 = 1069 ⋅5206319.

It is not a de Polignac number, because 1105555655 - 2¹⁰ = 1105554631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110555561 + ... + 110555570.

It is an arithmetic number, because the mean of its divisors is an integer number (331666698).

Almost surely, 2^1105555655 is an apocalyptic number.

1105555655 is a deficient number, since it is larger than the sum of its proper divisors (221111137).

1105555655 is an equidigital number, since it uses as much as digits as its factorization.

1105555655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221111136.

The product of its (nonzero) digits is 93750, while the sum is 38.

The square root of 1105555655 is about 33249.8970675098. The cubic root of 1105555655 is about 1034.0150742876.

The spelling of 1105555655 in words is "one billion, one hundred five million, five hundred fifty-five thousand, six hundred fifty-five".