1055560055105 has 4 divisors (see below), whose sum is σ = 1266672066132. Its totient is φ = 844448044080.

The previous prime is 1055560055083. The next prime is 1055560055107. The reversal of 1055560055105 is 5015500655501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 326496817201 + 729063237904 = 571399^2 + 853852^2 .

It is not a de Polignac number, because 1055560055105 - 2²⁰ = 1055559006529 is a prime.

It is a super-2 number, since 2×1055560055105² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055560055107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105556005506 + ... + 105556005515.

It is an arithmetic number, because the mean of its divisors is an integer number (316668016533).

Almost surely, 2^{1055560055105} is an apocalyptic number.

It is an amenable number.

1055560055105 is a deficient number, since it is larger than the sum of its proper divisors (211112011027).

1055560055105 is an equidigital number, since it uses as much as digits as its factorization.

1055560055105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211112011026.

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

The spelling of 1055560055105 in words is "one trillion, fifty-five billion, five hundred sixty million, fifty-five thousand, one hundred five".