54247747 has 4 divisors (see below), whose sum is σ = 54298296. Its totient is φ = 54197200.

The previous prime is 54247667. The next prime is 54247751. The reversal of 54247747 is 74774245.

54247747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 54247747 - 2¹¹ = 54245699 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 not an unprimeable number, because it can be changed into a prime (54247757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23629 + ... + 25822.

It is an arithmetic number, because the mean of its divisors is an integer number (13574574).

Almost surely, 2^54247747 is an apocalyptic number.

54247747 is a deficient number, since it is larger than the sum of its proper divisors (50549).

54247747 is a wasteful number, since it uses less digits than its factorization.

54247747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50548.

The product of its digits is 219520, while the sum is 40.

The square root of 54247747 is about 7365.3069861344. The cubic root of 54247747 is about 378.5534733283.

The spelling of 54247747 in words is "fifty-four million, two hundred forty-seven thousand, seven hundred forty-seven".