54478243 has 4 divisors (see below), whose sum is σ = 54534208. Its totient is φ = 54422280.

The previous prime is 54478241. The next prime is 54478247. The reversal of 54478243 is 34287445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34287445 = 5 ⋅6857489.

It is a cyclic number.

It is not a de Polignac number, because 54478243 - 2¹ = 54478241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54478241) 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, 26496 + ... + 28477.

It is an arithmetic number, because the mean of its divisors is an integer number (13633552).

Almost surely, 2^54478243 is an apocalyptic number.

54478243 is a deficient number, since it is larger than the sum of its proper divisors (55965).

54478243 is an equidigital number, since it uses as much as digits as its factorization.

54478243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55964.

The product of its digits is 107520, while the sum is 37.

The square root of 54478243 is about 7380.9378130425. The cubic root of 54478243 is about 379.0888674309.

It can be divided in two parts, 544 and 78243, that added together give a palindrome (78787).

The spelling of 54478243 in words is "fifty-four million, four hundred seventy-eight thousand, two hundred forty-three".