54158399 has 8 divisors (see below), whose sum is σ = 58462560. Its totient is φ = 50016736.

The previous prime is 54158389. The next prime is 54158407. The reversal of 54158399 is 99385145.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54158399 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 (54158339) 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, 39932 + ... + 41265.

It is an arithmetic number, because the mean of its divisors is an integer number (7307820).

Almost surely, 2^54158399 is an apocalyptic number.

54158399 is a deficient number, since it is larger than the sum of its proper divisors (4304161).

54158399 is a wasteful number, since it uses less digits than its factorization.

54158399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81249.

The product of its digits is 194400, while the sum is 44.

The square root of 54158399 is about 7359.2390231599. The cubic root of 54158399 is about 378.3455287048.

The spelling of 54158399 in words is "fifty-four million, one hundred fifty-eight thousand, three hundred ninety-nine".