55156165 has 8 divisors (see below), whose sum is σ = 66558240. Its totient is φ = 43877712.

The previous prime is 55156163. The next prime is 55156169. The reversal of 55156165 is 56165155.

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

It is a cyclic number.

It is not a de Polignac number, because 55156165 - 2¹ = 55156163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55156165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55156163) 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, 29919 + ... + 31708.

It is an arithmetic number, because the mean of its divisors is an integer number (8319780).

Almost surely, 2^55156165 is an apocalyptic number.

It is an amenable number.

55156165 is a deficient number, since it is larger than the sum of its proper divisors (11402075).

55156165 is a wasteful number, since it uses less digits than its factorization.

55156165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61811.

The product of its digits is 22500, while the sum is 34.

The square root of 55156165 is about 7426.7196661783. The cubic root of 55156165 is about 380.6548381173.

The spelling of 55156165 in words is "fifty-five million, one hundred fifty-six thousand, one hundred sixty-five".