54928639 has 8 divisors (see below), whose sum is σ = 59814000. Its totient is φ = 50242752.

The previous prime is 54928637. The next prime is 54928651. The reversal of 54928639 is 93682945.

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

It is a cyclic number.

It is not a de Polignac number, because 54928639 - 2¹ = 54928637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54928633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49294 + ... + 50395.

It is an arithmetic number, because the mean of its divisors is an integer number (7476750).

Almost surely, 2^54928639 is an apocalyptic number.

54928639 is a deficient number, since it is larger than the sum of its proper divisors (4885361).

54928639 is a wasteful number, since it uses less digits than its factorization.

54928639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99737.

The product of its digits is 466560, while the sum is 46.

The square root of 54928639 is about 7411.3857678575. The cubic root of 54928639 is about 380.1307006545.

The spelling of 54928639 in words is "fifty-four million, nine hundred twenty-eight thousand, six hundred thirty-nine".