54478163 has 4 divisors (see below), whose sum is σ = 55167840. Its totient is φ = 53788488.

The previous prime is 54478147. The next prime is 54478199. The reversal of 54478163 is 36187445.

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 54478163 - 2⁴ = 54478147 is a prime.

It is a super-4 number, since 4×54478163⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54478133) 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, 344720 + ... + 344877.

It is an arithmetic number, because the mean of its divisors is an integer number (13791960).

Almost surely, 2^54478163 is an apocalyptic number.

54478163 is a deficient number, since it is larger than the sum of its proper divisors (689677).

54478163 is an equidigital number, since it uses as much as digits as its factorization.

54478163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689676.

The product of its digits is 80640, while the sum is 38.

The square root of 54478163 is about 7380.9323936749. The cubic root of 54478163 is about 379.0886818698.

The spelling of 54478163 in words is "fifty-four million, four hundred seventy-eight thousand, one hundred sixty-three".