54421443 has 8 divisors (see below), whose sum is σ = 80624400. Its totient is φ = 36280944.

The previous prime is 54421397. The next prime is 54421481. The reversal of 54421443 is 34412445.

It is a happy number.

It is not a de Polignac number, because 54421443 - 2¹⁰ = 54420419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2015609 = 54421443 / (5 + 4 + 4 + 2 + 1 + 4 + 4 + 3).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (54426443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007778 + ... + 1007831.

It is an arithmetic number, because the mean of its divisors is an integer number (10078050).

Almost surely, 2^54421443 is an apocalyptic number.

54421443 is a deficient number, since it is larger than the sum of its proper divisors (26202957).

54421443 is a wasteful number, since it uses less digits than its factorization.

54421443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015618 (or 2015612 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 54421443 is about 7377.0890600561. The cubic root of 54421443 is about 378.9570733169.

Adding to 54421443 its reverse (34412445), we get a palindrome (88833888).

The spelling of 54421443 in words is "fifty-four million, four hundred twenty-one thousand, four hundred forty-three".