54438549 has 16 divisors (see below), whose sum is σ = 80870400. Its totient is φ = 32290160.

The previous prime is 54438523. The next prime is 54438563. The reversal of 54438549 is 94583445.

It is a cyclic number.

It is not a de Polignac number, because 54438549 - 2⁷ = 54438421 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 54438549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54438589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15999 + ... + 19100.

It is an arithmetic number, because the mean of its divisors is an integer number (5054400).

Almost surely, 2^54438549 is an apocalyptic number.

It is an amenable number.

54438549 is a deficient number, since it is larger than the sum of its proper divisors (26431851).

54438549 is a wasteful number, since it uses less digits than its factorization.

54438549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35160.

The product of its digits is 345600, while the sum is 42.

The square root of 54438549 is about 7378.2483693625. The cubic root of 54438549 is about 378.9967743383.

Subtracting 54438549 from its reverse (94583445), we obtain a square (40144896 = 6336²).

It can be divided in two parts, 544 and 38549, that added together give a palindrome (39093).

The spelling of 54438549 in words is "fifty-four million, four hundred thirty-eight thousand, five hundred forty-nine".