5200561 has 2 divisors, whose sum is σ = 5200562. Its totient is φ = 5200560.

The previous prime is 5200511. The next prime is 5200567. The reversal of 5200561 is 1650025.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3083536 + 2117025 = 1756^2 + 1455^2 .

It is a cyclic number.

It is not a de Polignac number, because 5200561 - 2⁹ = 5200049 is a prime.

5200561 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5200567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2600280 + 2600281.

It is an arithmetic number, because the mean of its divisors is an integer number (2600281).

Almost surely, 2^5200561 is an apocalyptic number.

It is an amenable number.

5200561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5200561 is an equidigital number, since it uses as much as digits as its factorization.

5200561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 5200561 is about 2280.4738542680. The cubic root of 5200561 is about 173.2540511023.

Adding to 5200561 its reverse (1650025), we get a palindrome (6850586).

The spelling of 5200561 in words is "five million, two hundred thousand, five hundred sixty-one".