54945923 has 4 divisors (see below), whose sum is σ = 56840640. Its totient is φ = 53051208.

The previous prime is 54945901. The next prime is 54945937. The reversal of 54945923 is 32954945.

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

It is not a de Polignac number, because 54945923 - 2¹⁸ = 54683779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54945953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947315 + ... + 947372.

It is an arithmetic number, because the mean of its divisors is an integer number (14210160).

Almost surely, 2^54945923 is an apocalyptic number.

54945923 is a deficient number, since it is larger than the sum of its proper divisors (1894717).

54945923 is a wasteful number, since it uses less digits than its factorization.

54945923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894716.

The product of its digits is 194400, while the sum is 41.

The square root of 54945923 is about 7412.5517198870. The cubic root of 54945923 is about 380.1705674716.

The spelling of 54945923 in words is "fifty-four million, nine hundred forty-five thousand, nine hundred twenty-three".