54856009 has 4 divisors (see below), whose sum is σ = 59075716. Its totient is φ = 50636304.

The previous prime is 54855971. The next prime is 54856013. The reversal of 54856009 is 90065845.

54856009 is nontrivially palindromic in base 12.

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 2250000 + 52606009 = 1500^2 + 7253^2 .

It is a cyclic number.

It is not a de Polignac number, because 54856009 - 2¹⁷ = 54724937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54856079) 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, 2109834 + ... + 2109859.

It is an arithmetic number, because the mean of its divisors is an integer number (14768929).

Almost surely, 2^54856009 is an apocalyptic number.

It is an amenable number.

54856009 is a deficient number, since it is larger than the sum of its proper divisors (4219707).

54856009 is a wasteful number, since it uses less digits than its factorization.

54856009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4219706.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 54856009 is about 7406.4842536793. The cubic root of 54856009 is about 379.9630827478.

The spelling of 54856009 in words is "fifty-four million, eight hundred fifty-six thousand, nine".