55011110018 has 4 divisors (see below), whose sum is σ = 82516665030. Its totient is φ = 27505555008.

The previous prime is 55011109991. The next prime is 55011110051. The reversal of 55011110018 is 81001111055.

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

It can be written as a sum of positive squares in only one way, i.e., 54031607809 + 979502209 = 232447^2 + 31297^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55011109975 and 55011110002.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13752777503 + ... + 13752777506.

Almost surely, 2^55011110018 is an apocalyptic number.

55011110018 is a deficient number, since it is larger than the sum of its proper divisors (27505555012).

55011110018 is a wasteful number, since it uses less digits than its factorization.

55011110018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27505555011.

The product of its (nonzero) digits is 200, while the sum is 23.

The spelling of 55011110018 in words is "fifty-five billion, eleven million, one hundred ten thousand, eighteen".