54439623 has 12 divisors (see below), whose sum is σ = 89868688. Its totient is φ = 31108320.

The previous prime is 54439621. The next prime is 54439631. The reversal of 54439623 is 32693445.

54439623 is a `hidden beast` number, since 544 + 3 + 96 + 23 = 666.

It is not a de Polignac number, because 54439623 - 2¹ = 54439621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54439621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 431998 + ... + 432123.

Almost surely, 2^54439623 is an apocalyptic number.

54439623 is a deficient number, since it is larger than the sum of its proper divisors (35429065).

54439623 is a wasteful number, since it uses less digits than its factorization.

54439623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864134 (or 864131 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 54439623 is about 7378.3211505057. The cubic root of 54439623 is about 378.9992666889. Note that the first 3 decimals are identical.

The spelling of 54439623 in words is "fifty-four million, four hundred thirty-nine thousand, six hundred twenty-three".