54321839 has 12 divisors (see below), whose sum is σ = 64171512. Its totient is φ = 45583200.

The previous prime is 54321829. The next prime is 54321859. The reversal of 54321839 is 93812345.

It is not a de Polignac number, because 54321839 - 2⁴ = 54321823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54321799 and 54321808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54321829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12752 + ... + 16469.

It is an arithmetic number, because the mean of its divisors is an integer number (5347626).

Almost surely, 2^54321839 is an apocalyptic number.

54321839 is a deficient number, since it is larger than the sum of its proper divisors (9849673).

54321839 is a wasteful number, since it uses less digits than its factorization.

54321839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29258 (or 29245 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 54321839 is about 7370.3350670102. The cubic root of 54321839 is about 378.7257386965.

The spelling of 54321839 in words is "fifty-four million, three hundred twenty-one thousand, eight hundred thirty-nine".