54111749 has 4 divisors (see below), whose sum is σ = 54149580. Its totient is φ = 54073920.

The previous prime is 54111737. The next prime is 54111773. The reversal of 54111749 is 94711145.

It is a happy number.

54111749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 26884225 + 27227524 = 5185^2 + 5218^2 .

It is a cyclic number.

It is not a de Polignac number, because 54111749 - 2²⁰ = 53063173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54111949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16682 + ... + 19659.

It is an arithmetic number, because the mean of its divisors is an integer number (13537395).

Almost surely, 2^54111749 is an apocalyptic number.

It is an amenable number.

54111749 is a deficient number, since it is larger than the sum of its proper divisors (37831).

54111749 is a wasteful number, since it uses less digits than its factorization.

54111749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37830.

The product of its digits is 5040, while the sum is 32.

The square root of 54111749 is about 7356.0688550339. The cubic root of 54111749 is about 378.2368666488.

The spelling of 54111749 in words is "fifty-four million, one hundred eleven thousand, seven hundred forty-nine".