54388447 has 4 divisors (see below), whose sum is σ = 55545696. Its totient is φ = 53231200.

The previous prime is 54388417. The next prime is 54388459. The reversal of 54388447 is 74488345.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74488345 = 5 ⋅14897669.

It is a cyclic number.

It is not a de Polignac number, because 54388447 - 2¹¹ = 54386399 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 (54388417) 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, 578554 + ... + 578647.

It is an arithmetic number, because the mean of its divisors is an integer number (13886424).

Almost surely, 2^54388447 is an apocalyptic number.

54388447 is a deficient number, since it is larger than the sum of its proper divisors (1157249).

54388447 is a wasteful number, since it uses less digits than its factorization.

54388447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157248.

The product of its digits is 430080, while the sum is 43.

The square root of 54388447 is about 7374.8523375048. The cubic root of 54388447 is about 378.8804699608.

The spelling of 54388447 in words is "fifty-four million, three hundred eighty-eight thousand, four hundred forty-seven".