5216549 has 16 divisors (see below), whose sum is σ = 5911920. Its totient is φ = 4569600.

The previous prime is 5216521. The next prime is 5216567. The reversal of 5216549 is 9456125.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 122500 + 5094049 = 350^2 + 2257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5216549 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5216509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38009 + ... + 38145.

It is an arithmetic number, because the mean of its divisors is an integer number (369495).

Almost surely, 2^5216549 is an apocalyptic number.

It is an amenable number.

5216549 is a deficient number, since it is larger than the sum of its proper divisors (695371).

5216549 is a wasteful number, since it uses less digits than its factorization.

5216549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280.

The product of its digits is 10800, while the sum is 32.

The square root of 5216549 is about 2283.9765760620. The cubic root of 5216549 is about 173.4314135082.

The spelling of 5216549 in words is "five million, two hundred sixteen thousand, five hundred forty-nine".