55165305 has 32 divisors (see below), whose sum is σ = 96284160. Its totient is φ = 26807040.

The previous prime is 55165273. The next prime is 55165349. The reversal of 55165305 is 50356155.

55165305 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 55165305 - 2⁵ = 55165273 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 13615 + ... + 17195.

It is an arithmetic number, because the mean of its divisors is an integer number (3008880).

Almost surely, 2^55165305 is an apocalyptic number.

It is an amenable number.

55165305 is a deficient number, since it is larger than the sum of its proper divisors (41118855).

55165305 is a wasteful number, since it uses less digits than its factorization.

55165305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3681.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 55165305 is about 7427.3349863864. The cubic root of 55165305 is about 380.6758632258.

It can be divided in two parts, 551 and 65305, that added together give a palindrome (65856).

The spelling of 55165305 in words is "fifty-five million, one hundred sixty-five thousand, three hundred five".