54447 has 4 divisors (see below), whose sum is σ = 72600. Its totient is φ = 36296.

The previous prime is 54443. The next prime is 54449. The reversal of 54447 is 74445.

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 54447 - 2² = 54443 is a prime.

It is a D-number.

54447 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9072 + ... + 9077.

It is an arithmetic number, because the mean of its divisors is an integer number (18150).

2⁵⁴⁴⁴⁷ is an apocalyptic number.

54447 is a deficient number, since it is larger than the sum of its proper divisors (18153).

54447 is a wasteful number, since it uses less digits than its factorization.

54447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18152.

The product of its digits is 2240, while the sum is 24.

The square root of 54447 is about 233.3388094595. The cubic root of 54447 is about 37.9016385050.

The spelling of 54447 in words is "fifty-four thousand, four hundred forty-seven".