54112165 has 4 divisors (see below), whose sum is σ = 64934604. Its totient is φ = 43289728.

The previous prime is 54112141. The next prime is 54112187. The reversal of 54112165 is 56121145.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56121145 = 5 ⋅11224229.

It can be written as a sum of positive squares in 2 ways, for example, as 33016516 + 21095649 = 5746^2 + 4593^2 .

It is a cyclic number.

It is not a de Polignac number, because 54112165 - 2²¹ = 52015013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5411212 + ... + 5411221.

It is an arithmetic number, because the mean of its divisors is an integer number (16233651).

Almost surely, 2^54112165 is an apocalyptic number.

It is an amenable number.

54112165 is a deficient number, since it is larger than the sum of its proper divisors (10822439).

54112165 is a wasteful number, since it uses less digits than its factorization.

54112165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10822438.

The product of its digits is 1200, while the sum is 25.

The square root of 54112165 is about 7356.0971309520. The cubic root of 54112165 is about 378.2378359154.

The spelling of 54112165 in words is "fifty-four million, one hundred twelve thousand, one hundred sixty-five".