23345563 has 2 divisors, whose sum is σ = 23345564. Its totient is φ = 23345562.

The previous prime is 23345513. The next prime is 23345579. The reversal of 23345563 is 36554332.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23345563 - 2⁹ = 23345051 is a prime.

It is not a weakly prime, because it can be changed into another prime (23345503) 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 as a sum of consecutive naturals, namely, 11672781 + 11672782.

It is an arithmetic number, because the mean of its divisors is an integer number (11672782).

Almost surely, 2^23345563 is an apocalyptic number.

23345563 is a deficient number, since it is larger than the sum of its proper divisors (1).

23345563 is an equidigital number, since it uses as much as digits as its factorization.

23345563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 31.

The square root of 23345563 is about 4831.7246403329. The cubic root of 23345563 is about 285.8038779629.

Adding to 23345563 its reverse (36554332), we get a palindrome (59899895).

It can be divided in two parts, 233 and 45563, that added together give a square (45796 = 214²).

The spelling of 23345563 in words is "twenty-three million, three hundred forty-five thousand, five hundred sixty-three".