54409449 has 16 divisors (see below), whose sum is σ = 73438400. Its totient is φ = 35830080.

The previous prime is 54409447. The next prime is 54409451. The reversal of 54409449 is 94490445.

It is an interprime number because it is at equal distance from previous prime (54409447) and next prime (54409451).

It is not a de Polignac number, because 54409449 - 2¹ = 54409447 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54409447) 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, 155727 + ... + 156075.

It is an arithmetic number, because the mean of its divisors is an integer number (4589900).

Almost surely, 2^54409449 is an apocalyptic number.

It is an amenable number.

54409449 is a deficient number, since it is larger than the sum of its proper divisors (19028951).

54409449 is a wasteful number, since it uses less digits than its factorization.

54409449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 54409449 is about 7376.2760929889. The cubic root of 54409449 is about 378.9292316866.

The spelling of 54409449 in words is "fifty-four million, four hundred nine thousand, four hundred forty-nine".