54211165 has 4 divisors (see below), whose sum is σ = 65053404. Its totient is φ = 43368928.

The previous prime is 54211159. The next prime is 54211169. The reversal of 54211165 is 56111245.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37613689 + 16597476 = 6133^2 + 4074^2 .

It is a cyclic number.

It is not a de Polignac number, because 54211165 - 2⁵ = 54211133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54211169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5421112 + ... + 5421121.

It is an arithmetic number, because the mean of its divisors is an integer number (16263351).

Almost surely, 2^54211165 is an apocalyptic number.

It is an amenable number.

54211165 is a deficient number, since it is larger than the sum of its proper divisors (10842239).

54211165 is a wasteful number, since it uses less digits than its factorization.

54211165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10842238.

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

The square root of 54211165 is about 7362.8231677801. The cubic root of 54211165 is about 378.4683616082.

The spelling of 54211165 in words is "fifty-four million, two hundred eleven thousand, one hundred sixty-five".