55448449 has 12 divisors (see below), whose sum is σ = 64689300. Its totient is φ = 47388768.

The previous prime is 55448447. The next prime is 55448461. The reversal of 55448449 is 94484455.

It can be written as a sum of positive squares in 2 ways, for example, as 31438449 + 24010000 = 5607^2 + 4900^2 .

It is not a de Polignac number, because 55448449 - 2¹ = 55448447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55448443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17607 + ... + 20515.

It is an arithmetic number, because the mean of its divisors is an integer number (5390775).

Almost surely, 2^55448449 is an apocalyptic number.

It is an amenable number.

55448449 is a deficient number, since it is larger than the sum of its proper divisors (9240851).

55448449 is a wasteful number, since it uses less digits than its factorization.

55448449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312 (or 3305 counting only the distinct ones).

The product of its digits is 460800, while the sum is 43.

The square root of 55448449 is about 7446.3715324982. The cubic root of 55448449 is about 381.3260436328.

The spelling of 55448449 in words is "fifty-five million, four hundred forty-eight thousand, four hundred forty-nine".