5515144 has 8 divisors (see below), whose sum is σ = 10340910. Its totient is φ = 2757568.

The previous prime is 5515141. The next prime is 5515151. The reversal of 5515144 is 4415155.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3724900 + 1790244 = 1930^2 + 1338^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (5515141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344689 + ... + 344704.

Almost surely, 2^5515144 is an apocalyptic number.

It is an amenable number.

5515144 is a deficient number, since it is larger than the sum of its proper divisors (4825766).

5515144 is a wasteful number, since it uses less digits than its factorization.

5515144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689399 (or 689395 counting only the distinct ones).

The product of its digits is 2000, while the sum is 25.

The square root of 5515144 is about 2348.4343720871. The cubic root of 5515144 is about 176.6792791913.

The spelling of 5515144 in words is "five million, five hundred fifteen thousand, one hundred forty-four".