55605560111 has 4 divisors (see below), whose sum is σ = 56435493912. Its totient is φ = 54775626312.

The previous prime is 55605560107. The next prime is 55605560167. The reversal of 55605560111 is 11106550655.

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

It is a cyclic number.

It is not a de Polignac number, because 55605560111 - 2² = 55605560107 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 (55605560191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414966800 + ... + 414966933.

It is an arithmetic number, because the mean of its divisors is an integer number (14108873478).

Almost surely, 2^55605560111 is an apocalyptic number.

55605560111 is a deficient number, since it is larger than the sum of its proper divisors (829933801).

55605560111 is an equidigital number, since it uses as much as digits as its factorization.

55605560111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829933800.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 55605560111 in words is "fifty-five billion, six hundred five million, five hundred sixty thousand, one hundred eleven".