5216569 has 4 divisors (see below), whose sum is σ = 5523444. Its totient is φ = 4909696.

The previous prime is 5216567. The next prime is 5216573. The reversal of 5216569 is 9656125.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1530169 + 3686400 = 1237^2 + 1920^2 .

It is a cyclic number.

It is not a de Polignac number, because 5216569 - 2¹ = 5216567 is a prime.

It is a super-2 number, since 2×5216569² = 54425184263522, which contains 22 as substring.

It is an Ulam number.

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

It is a Duffinian number.

5216569 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5216567) 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, 153412 + ... + 153445.

It is an arithmetic number, because the mean of its divisors is an integer number (1380861).

Almost surely, 2^5216569 is an apocalyptic number.

It is an amenable number.

5216569 is a deficient number, since it is larger than the sum of its proper divisors (306875).

5216569 is a wasteful number, since it uses less digits than its factorization.

5216569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306874.

The product of its digits is 16200, while the sum is 34.

The square root of 5216569 is about 2283.9809543864. The cubic root of 5216569 is about 173.4316351505.

The spelling of 5216569 in words is "five million, two hundred sixteen thousand, five hundred sixty-nine".