54442109 has 12 divisors (see below), whose sum is σ = 58137204. Its totient is φ = 50970624.

The previous prime is 54442099. The next prime is 54442117. The reversal of 54442109 is 90124445.

It can be written as a sum of positive squares in 6 ways, for example, as 35736484 + 18705625 = 5978^2 + 4325^2 .

It is not a de Polignac number, because 54442109 - 2⁴ = 54442093 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 (54442189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73907 + ... + 74639.

It is an arithmetic number, because the mean of its divisors is an integer number (4844767).

Almost surely, 2^54442109 is an apocalyptic number.

It is an amenable number.

54442109 is a deficient number, since it is larger than the sum of its proper divisors (3695095).

54442109 is a wasteful number, since it uses less digits than its factorization.

54442109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024 (or 1007 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 54442109 is about 7378.4896150906. The cubic root of 54442109 is about 379.0050356355.

The spelling of 54442109 in words is "fifty-four million, four hundred forty-two thousand, one hundred nine".