5242561 has 2 divisors, whose sum is σ = 5242562. Its totient is φ = 5242560.

The previous prime is 5242513. The next prime is 5242571. The reversal of 5242561 is 1652425.

5242561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5035536 + 207025 = 2244^2 + 455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5242561 is a prime.

5242561 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5242571) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2621280 + 2621281.

It is an arithmetic number, because the mean of its divisors is an integer number (2621281).

Almost surely, 2^5242561 is an apocalyptic number.

It is an amenable number.

5242561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5242561 is an equidigital number, since it uses as much as digits as its factorization.

5242561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 25.

The square root of 5242561 is about 2289.6639491419. The cubic root of 5242561 is about 173.7192040377.

Adding to 5242561 its reverse (1652425), we get a palindrome (6894986).

The spelling of 5242561 in words is "five million, two hundred forty-two thousand, five hundred sixty-one".