55118971 has 8 divisors (see below), whose sum is σ = 57821184. Its totient is φ = 52442280.

The previous prime is 55118969. The next prime is 55118977. The reversal of 55118971 is 17981155.

55118971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55118971 - 2¹ = 55118969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55118971.

It is not an unprimeable number, because it can be changed into a prime (55118977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1881 + ... + 10666.

It is an arithmetic number, because the mean of its divisors is an integer number (7227648).

Almost surely, 2^55118971 is an apocalyptic number.

55118971 is a deficient number, since it is larger than the sum of its proper divisors (2702213).

55118971 is a wasteful number, since it uses less digits than its factorization.

55118971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12761.

The product of its digits is 12600, while the sum is 37.

The square root of 55118971 is about 7424.2151773773. The cubic root of 55118971 is about 380.5692553017.

The spelling of 55118971 in words is "fifty-five million, one hundred eighteen thousand, nine hundred seventy-one".