5518172 has 24 divisors (see below), whose sum is σ = 10668672. Its totient is φ = 2476400.

The previous prime is 5518171. The next prime is 5518241. The reversal of 5518172 is 2718155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5518171) 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 7 ways as a sum of consecutive naturals, for example, 2897 + ... + 4407.

It is an arithmetic number, because the mean of its divisors is an integer number (444528).

Almost surely, 2^5518172 is an apocalyptic number.

It is an amenable number.

5518172 is a deficient number, since it is larger than the sum of its proper divisors (5150500).

5518172 is a wasteful number, since it uses less digits than its factorization.

5518172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609 (or 1607 counting only the distinct ones).

The product of its digits is 2800, while the sum is 29.

The square root of 5518172 is about 2349.0789684470. The cubic root of 5518172 is about 176.7116075693.

The spelling of 5518172 in words is "five million, five hundred eighteen thousand, one hundred seventy-two".