5518971 has 6 divisors (see below), whose sum is σ = 7971860. Its totient is φ = 3679308.

The previous prime is 5518967. The next prime is 5519029. The reversal of 5518971 is 1798155.

It is not a de Polignac number, because 5518971 - 2² = 5518967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5518951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306601 + ... + 306618.

Almost surely, 2^5518971 is an apocalyptic number.

5518971 is a deficient number, since it is larger than the sum of its proper divisors (2452889).

5518971 is a wasteful number, since it uses less digits than its factorization.

5518971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613225 (or 613222 counting only the distinct ones).

The product of its digits is 12600, while the sum is 36.

The square root of 5518971 is about 2349.2490289452. The cubic root of 5518971 is about 176.7201361037.

The spelling of 5518971 in words is "five million, five hundred eighteen thousand, nine hundred seventy-one".