5561440449 has 8 divisors (see below), whose sum is σ = 7596113952. Its totient is φ = 3617196960.

The previous prime is 5561440441. The next prime is 5561440471. The reversal of 5561440449 is 9440441655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5561440449 - 2³ = 5561440441 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 5561440449.

It is not an unprimeable number, because it can be changed into a prime (5561440441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22607359 + ... + 22607604.

It is an arithmetic number, because the mean of its divisors is an integer number (949514244).

Almost surely, 2^5561440449 is an apocalyptic number.

It is an amenable number.

5561440449 is a deficient number, since it is larger than the sum of its proper divisors (2034673503).

5561440449 is a wasteful number, since it uses less digits than its factorization.

5561440449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45215007.

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

The square root of 5561440449 is about 74575.0658665482. The cubic root of 5561440449 is about 1771.7227578672.

The spelling of 5561440449 in words is "five billion, five hundred sixty-one million, four hundred forty thousand, four hundred forty-nine".