55506099611 has 4 divisors (see below), whose sum is σ = 58771164312. Its totient is φ = 52241034912.

The previous prime is 55506099581. The next prime is 55506099619. The reversal of 55506099611 is 11699060555.

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 55506099611 - 2¹⁸ = 55505837467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55506099619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1632532325 + ... + 1632532358.

It is an arithmetic number, because the mean of its divisors is an integer number (14692791078).

Almost surely, 2^55506099611 is an apocalyptic number.

55506099611 is a deficient number, since it is larger than the sum of its proper divisors (3265064701).

55506099611 is a wasteful number, since it uses less digits than its factorization.

55506099611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3265064700.

The product of its (nonzero) digits is 364500, while the sum is 47.

The spelling of 55506099611 in words is "fifty-five billion, five hundred six million, ninety-nine thousand, six hundred eleven".