55161105 has 16 divisors (see below), whose sum is σ = 88503360. Its totient is φ = 29337408.

The previous prime is 55161091. The next prime is 55161109. The reversal of 55161105 is 50116155.

It is not a de Polignac number, because 55161105 - 2⁴ = 55161089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55161109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 666 + ... + 10524.

It is an arithmetic number, because the mean of its divisors is an integer number (5531460).

Almost surely, 2^55161105 is an apocalyptic number.

It is an amenable number.

55161105 is a deficient number, since it is larger than the sum of its proper divisors (33342255).

55161105 is a wasteful number, since it uses less digits than its factorization.

55161105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10240.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 55161105 is about 7427.0522416367. The cubic root of 55161105 is about 380.6662020858. Note that the first 3 decimals are identical.

The spelling of 55161105 in words is "fifty-five million, one hundred sixty-one thousand, one hundred five".