55188035811 has 24 divisors (see below), whose sum is σ = 79951762800. Its totient is φ = 36683387136.

The previous prime is 55188035779. The next prime is 55188035813. The reversal of 55188035811 is 11853088155.

55188035811 is a `hidden beast` number, since 5 + 518 + 80 + 3 + 58 + 1 + 1 = 666.

It is not a de Polignac number, because 55188035811 - 2⁵ = 55188035779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55188035813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4932055 + ... + 4943231.

It is an arithmetic number, because the mean of its divisors is an integer number (3331323450).

Almost surely, 2^55188035811 is an apocalyptic number.

55188035811 is a deficient number, since it is larger than the sum of its proper divisors (24763726989).

55188035811 is a wasteful number, since it uses less digits than its factorization.

55188035811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12755 (or 12752 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 45.

The spelling of 55188035811 in words is "fifty-five billion, one hundred eighty-eight million, thirty-five thousand, eight hundred eleven".