23453563 has 8 divisors (see below), whose sum is σ = 26910432. Its totient is φ = 20023296.

The previous prime is 23453561. The next prime is 23453567. The reversal of 23453563 is 36535432.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23453563 - 2¹ = 23453561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23453561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4720 + ... + 8317.

It is an arithmetic number, because the mean of its divisors is an integer number (3363804).

Almost surely, 2^23453563 is an apocalyptic number.

23453563 is a deficient number, since it is larger than the sum of its proper divisors (3456869).

23453563 is a wasteful number, since it uses less digits than its factorization.

23453563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13301.

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

The square root of 23453563 is about 4842.8878781157. The cubic root of 23453563 is about 286.2439236457.

Adding to 23453563 its reverse (36535432), we get a palindrome (59988995).

The spelling of 23453563 in words is "twenty-three million, four hundred fifty-three thousand, five hundred sixty-three".