1100055550549 has 4 divisors (see below), whose sum is σ = 1100553992064. Its totient is φ = 1099557109036.

The previous prime is 1100055550543. The next prime is 1100055550553. The reversal of 1100055550549 is 9450555500011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1100055550549 - 2¹⁹ = 1100055026261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100055550543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249217447 + ... + 249221860.

It is an arithmetic number, because the mean of its divisors is an integer number (275138498016).

Almost surely, 2^{1100055550549} is an apocalyptic number.

It is an amenable number.

1100055550549 is a deficient number, since it is larger than the sum of its proper divisors (498441515).

1100055550549 is an equidigital number, since it uses as much as digits as its factorization.

1100055550549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498441514.

The product of its (nonzero) digits is 112500, while the sum is 40.

The spelling of 1100055550549 in words is "one trillion, one hundred billion, fifty-five million, five hundred fifty thousand, five hundred forty-nine".