54819989 has 8 divisors (see below), whose sum is σ = 62701440. Its totient is φ = 46951056.

The previous prime is 54819953. The next prime is 54820021. The reversal of 54819989 is 98991845.

54819989 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54819989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54819989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54819949) 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, 9872 + ... + 14390.

It is an arithmetic number, because the mean of its divisors is an integer number (7837680).

Almost surely, 2^54819989 is an apocalyptic number.

It is an amenable number.

54819989 is a deficient number, since it is larger than the sum of its proper divisors (7881451).

54819989 is a wasteful number, since it uses less digits than its factorization.

54819989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6259.

The product of its digits is 933120, while the sum is 53.

The square root of 54819989 is about 7404.0522013287. The cubic root of 54819989 is about 379.8798997190.

The spelling of 54819989 in words is "fifty-four million, eight hundred nineteen thousand, nine hundred eighty-nine".