55082163 has 4 divisors (see below), whose sum is σ = 73442888. Its totient is φ = 36721440.

The previous prime is 55082161. The next prime is 55082173. The reversal of 55082163 is 36128055.

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

It is not a de Polignac number, because 55082163 - 2¹ = 55082161 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 55082163.

It is not an unprimeable number, because it can be changed into a prime (55082161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9180358 + ... + 9180363.

It is an arithmetic number, because the mean of its divisors is an integer number (18360722).

Almost surely, 2^55082163 is an apocalyptic number.

55082163 is a deficient number, since it is larger than the sum of its proper divisors (18360725).

55082163 is a wasteful number, since it uses less digits than its factorization.

55082163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18360724.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 55082163 is about 7421.7358481692. The cubic root of 55082163 is about 380.4845227545.

The spelling of 55082163 in words is "fifty-five million, eighty-two thousand, one hundred sixty-three".