54845009 has 8 divisors (see below), whose sum is σ = 58136040. Its totient is φ = 51561216.

The previous prime is 54844987. The next prime is 54845017. The reversal of 54845009 is 90054845.

54845009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 20070400 + 34774609 = 4480^2 + 5897^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54845009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54845009.

It is not an unprimeable number, because it can be changed into a prime (54845029) 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 7 ways as a sum of consecutive naturals, for example, 27407 + ... + 29339.

It is an arithmetic number, because the mean of its divisors is an integer number (7267005).

Almost surely, 2^54845009 is an apocalyptic number.

It is an amenable number.

54845009 is a deficient number, since it is larger than the sum of its proper divisors (3291031).

54845009 is a wasteful number, since it uses less digits than its factorization.

54845009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3619.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 54845009 is about 7405.7416239024. The cubic root of 54845009 is about 379.9376836871.

The spelling of 54845009 in words is "fifty-four million, eight hundred forty-five thousand, nine".