54729239 has 8 divisors (see below), whose sum is σ = 59297040. Its totient is φ = 50311296.

The previous prime is 54729211. The next prime is 54729247. The reversal of 54729239 is 93292745.

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

It is not a de Polignac number, because 54729239 - 2²⁴ = 37952023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54729196 and 54729205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54729209) 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, 36704 + ... + 38165.

It is an arithmetic number, because the mean of its divisors is an integer number (7412130).

Almost surely, 2^54729239 is an apocalyptic number.

54729239 is a deficient number, since it is larger than the sum of its proper divisors (4567801).

54729239 is a wasteful number, since it uses less digits than its factorization.

54729239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74929.

The product of its digits is 136080, while the sum is 41.

The square root of 54729239 is about 7397.9212620844. The cubic root of 54729239 is about 379.6701639270.

The spelling of 54729239 in words is "fifty-four million, seven hundred twenty-nine thousand, two hundred thirty-nine".