55011165 has 32 divisors (see below), whose sum is σ = 96999552. Its totient is φ = 26400000.

The previous prime is 55011163. The next prime is 55011169. The reversal of 55011165 is 56111055.

It is not a de Polignac number, because 55011165 - 2¹ = 55011163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55011163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15015 + ... + 18315.

It is an arithmetic number, because the mean of its divisors is an integer number (3031236).

Almost surely, 2^55011165 is an apocalyptic number.

55011165 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55011165 is a deficient number, since it is larger than the sum of its proper divisors (41988387).

55011165 is a wasteful number, since it uses less digits than its factorization.

55011165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3421.

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

The square root of 55011165 is about 7416.9511930442. The cubic root of 55011165 is about 380.3209776467.

It can be divided in two parts, 5501 and 1165, that added together give a palindrome (6666).

The spelling of 55011165 in words is "fifty-five million, eleven thousand, one hundred sixty-five".