5518973 has 4 divisors (see below), whose sum is σ = 5527548. Its totient is φ = 5510400.

The previous prime is 5518967. The next prime is 5519029. The reversal of 5518973 is 3798155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3798155 = 5 ⋅759631.

It can be written as a sum of positive squares in 2 ways, for example, as 2199289 + 3319684 = 1483^2 + 1822^2 .

It is a cyclic number.

It is not a de Polignac number, because 5518973 - 2¹⁸ = 5256829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5518913) 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 3 ways as a sum of consecutive naturals, for example, 3236 + ... + 4637.

It is an arithmetic number, because the mean of its divisors is an integer number (1381887).

Almost surely, 2^5518973 is an apocalyptic number.

It is an amenable number.

5518973 is a deficient number, since it is larger than the sum of its proper divisors (8575).

5518973 is an equidigital number, since it uses as much as digits as its factorization.

5518973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8574.

The product of its digits is 37800, while the sum is 38.

The square root of 5518973 is about 2349.2494546131. The cubic root of 5518973 is about 176.7201574507.

The spelling of 5518973 in words is "five million, five hundred eighteen thousand, nine hundred seventy-three".