55189165 has 8 divisors (see below), whose sum is σ = 67476888. Its totient is φ = 43318080.

The previous prime is 55189133. The next prime is 55189177. The reversal of 55189165 is 56198155.

It can be written as a sum of positive squares in 4 ways, for example, as 12404484 + 42784681 = 3522^2 + 6541^2 .

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

It is not a de Polignac number, because 55189165 - 2⁵ = 55189133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103866 + ... + 104395.

It is an arithmetic number, because the mean of its divisors is an integer number (8434611).

Almost surely, 2^55189165 is an apocalyptic number.

It is an amenable number.

55189165 is a deficient number, since it is larger than the sum of its proper divisors (12287723).

55189165 is a wasteful number, since it uses less digits than its factorization.

55189165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208319.

The product of its digits is 54000, while the sum is 40.

The square root of 55189165 is about 7428.9410416290. The cubic root of 55189165 is about 380.7307383984.

The spelling of 55189165 in words is "fifty-five million, one hundred eighty-nine thousand, one hundred sixty-five".