2321563 has 2 divisors, whose sum is σ = 2321564. Its totient is φ = 2321562.

The previous prime is 2321531. The next prime is 2321587. The reversal of 2321563 is 3651232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2321563 - 2⁵ = 2321531 is a prime.

It is not a weakly prime, because it can be changed into another prime (2321863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160781 + 1160782.

It is an arithmetic number, because the mean of its divisors is an integer number (1160782).

2^2321563 is an apocalyptic number.

2321563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321563 is an equidigital number, since it uses as much as digits as its factorization.

2321563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 22.

The square root of 2321563 is about 1523.6676146719. The cubic root of 2321563 is about 132.4118412023.

Adding to 2321563 its reverse (3651232), we get a palindrome (5972795).

The spelling of 2321563 in words is "two million, three hundred twenty-one thousand, five hundred sixty-three".