55081365 has 16 divisors (see below), whose sum is σ = 88267200. Its totient is φ = 29331072.

The previous prime is 55081357. The next prime is 55081381. The reversal of 55081365 is 56318055.

55081365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55081365 - 2³ = 55081357 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8601 + ... + 13569.

It is an arithmetic number, because the mean of its divisors is an integer number (5516700).

Almost surely, 2^55081365 is an apocalyptic number.

It is an amenable number.

55081365 is a deficient number, since it is larger than the sum of its proper divisors (33185835).

55081365 is a wasteful number, since it uses less digits than its factorization.

55081365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5716.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 55081365 is about 7421.6820869665. The cubic root of 55081365 is about 380.4826853289.

The spelling of 55081365 in words is "fifty-five million, eighty-one thousand, three hundred sixty-five".