54206839 has 4 divisors (see below), whose sum is σ = 55360224. Its totient is φ = 53053456.

The previous prime is 54206833. The next prime is 54206843. The reversal of 54206839 is 93860245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93860245 = 5 ⋅18772049.

It is a cyclic number.

It is not a de Polignac number, because 54206839 - 2²⁵ = 20652407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54206798 and 54206807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54206833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576622 + ... + 576715.

It is an arithmetic number, because the mean of its divisors is an integer number (13840056).

Almost surely, 2^54206839 is an apocalyptic number.

54206839 is a deficient number, since it is larger than the sum of its proper divisors (1153385).

54206839 is a wasteful number, since it uses less digits than its factorization.

54206839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153384.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 54206839 is about 7362.5293887359. The cubic root of 54206839 is about 378.4582942006.

The spelling of 54206839 in words is "fifty-four million, two hundred six thousand, eight hundred thirty-nine".