54618889 has 8 divisors (see below), whose sum is σ = 59342472. Its totient is φ = 49969920.

The previous prime is 54618871. The next prime is 54618911. The reversal of 54618889 is 98881645.

It can be written as a sum of positive squares in 4 ways, for example, as 2778889 + 51840000 = 1667^2 + 7200^2 .

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

It is not a de Polignac number, because 54618889 - 2¹¹ = 54616841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54618829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17122 + ... + 20059.

It is an arithmetic number, because the mean of its divisors is an integer number (7417809).

Almost surely, 2^54618889 is an apocalyptic number.

It is an amenable number.

54618889 is a deficient number, since it is larger than the sum of its proper divisors (4723583).

54618889 is a wasteful number, since it uses less digits than its factorization.

54618889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37307.

The product of its digits is 552960, while the sum is 49.

The square root of 54618889 is about 7390.4593226673. The cubic root of 54618889 is about 379.4148172208.

The spelling of 54618889 in words is "fifty-four million, six hundred eighteen thousand, eight hundred eighty-nine".