54856509 has 8 divisors (see below), whose sum is σ = 73591392. Its totient is φ = 36346320.

The previous prime is 54856499. The next prime is 54856513. The reversal of 54856509 is 90565845.

54856509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 54856509 - 2⁴ = 54856493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54856559) 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, 55602 + ... + 56579.

It is an arithmetic number, because the mean of its divisors is an integer number (9198924).

Almost surely, 2^54856509 is an apocalyptic number.

It is an amenable number.

54856509 is a deficient number, since it is larger than the sum of its proper divisors (18734883).

54856509 is a wasteful number, since it uses less digits than its factorization.

54856509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112347.

The product of its (nonzero) digits is 216000, while the sum is 42.

The square root of 54856509 is about 7406.5180078091. The cubic root of 54856509 is about 379.9642371699.

The spelling of 54856509 in words is "fifty-four million, eight hundred fifty-six thousand, five hundred nine".