5515444446 has 8 divisors (see below), whose sum is σ = 11030888904. Its totient is φ = 1838481480.

The previous prime is 5515444433. The next prime is 5515444447. The reversal of 5515444446 is 6444445155.

It is a happy number.

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

5515444446 is an admirable number.

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 Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5515444398 and 5515444407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515444447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459620365 + ... + 459620376.

It is an arithmetic number, because the mean of its divisors is an integer number (1378861113).

Almost surely, 2^5515444446 is an apocalyptic number.

5515444446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5515444446 is a wasteful number, since it uses less digits than its factorization.

5515444446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919240746.

The product of its digits is 768000, while the sum is 42.

The square root of 5515444446 is about 74266.0383082335. The cubic root of 5515444446 is about 1766.8248742540.

The spelling of 5515444446 in words is "five billion, five hundred fifteen million, four hundred forty-four thousand, four hundred forty-six".