55188236611 has 4 divisors (see below), whose sum is σ = 55246514472. Its totient is φ = 55129958752.

The previous prime is 55188236549. The next prime is 55188236629. The reversal of 55188236611 is 11663288155.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55188236611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55188230611) 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, 29137510 + ... + 29139403.

It is an arithmetic number, because the mean of its divisors is an integer number (13811628618).

Almost surely, 2^55188236611 is an apocalyptic number.

55188236611 is a deficient number, since it is larger than the sum of its proper divisors (58277861).

55188236611 is an equidigital number, since it uses as much as digits as its factorization.

55188236611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58277860.

The product of its digits is 345600, while the sum is 46.

The spelling of 55188236611 in words is "fifty-five billion, one hundred eighty-eight million, two hundred thirty-six thousand, six hundred eleven".