54389623 has 4 divisors (see below), whose sum is σ = 54440568. Its totient is φ = 54338680.

The previous prime is 54389617. The next prime is 54389627. The reversal of 54389623 is 32698345.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54389623 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54389627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23836 + ... + 26017.

It is an arithmetic number, because the mean of its divisors is an integer number (13610142).

Almost surely, 2^54389623 is an apocalyptic number.

54389623 is a deficient number, since it is larger than the sum of its proper divisors (50945).

54389623 is a wasteful number, since it uses less digits than its factorization.

54389623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50944.

The product of its digits is 155520, while the sum is 40.

The square root of 54389623 is about 7374.9320674837. The cubic root of 54389623 is about 378.8832006891.

The spelling of 54389623 in words is "fifty-four million, three hundred eighty-nine thousand, six hundred twenty-three".