5222561 has 4 divisors (see below), whose sum is σ = 5231124. Its totient is φ = 5214000.

The previous prime is 5222533. The next prime is 5222573. The reversal of 5222561 is 1652225.

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 3876961 + 1345600 = 1969^2 + 1160^2 .

It is a cyclic number.

It is not a de Polignac number, because 5222561 - 2¹⁴ = 5206177 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 (5222501) 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 3 ways as a sum of consecutive naturals, for example, 3290 + ... + 4611.

It is an arithmetic number, because the mean of its divisors is an integer number (1307781).

Almost surely, 2^5222561 is an apocalyptic number.

It is an amenable number.

5222561 is a deficient number, since it is larger than the sum of its proper divisors (8563).

5222561 is an equidigital number, since it uses as much as digits as its factorization.

5222561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8562.

The product of its digits is 1200, while the sum is 23.

The square root of 5222561 is about 2285.2923226581. The cubic root of 5222561 is about 173.4980136916.

Adding to 5222561 its reverse (1652225), we get a palindrome (6874786).

The spelling of 5222561 in words is "five million, two hundred twenty-two thousand, five hundred sixty-one".