55065 has 8 divisors (see below), whose sum is σ = 88128. Its totient is φ = 29360.

The previous prime is 55061. The next prime is 55073. The reversal of 55065 is 56055.

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

It is not a de Polignac number, because 55065 - 2² = 55061 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 55065.

It is not an unprimeable number, because it can be changed into a prime (55061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1821 + ... + 1850.

It is an arithmetic number, because the mean of its divisors is an integer number (11016).

2⁵⁵⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

55065 is a deficient number, since it is larger than the sum of its proper divisors (33063).

55065 is a wasteful number, since it uses less digits than its factorization.

55065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 55065 is about 234.6593275368. The cubic root of 55065 is about 38.0445000376.

Subtracting 55065 from its reverse (56055), we obtain a triangular number (990 = T₄₄).

The spelling of 55065 in words is "fifty-five thousand, sixty-five".