23506523 has 4 divisors (see below), whose sum is σ = 23519160. Its totient is φ = 23493888.

The previous prime is 23506517. The next prime is 23506541. The reversal of 23506523 is 32560532.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23506523 - 2¹⁶ = 23440987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23506492 and 23506501.

It is not an unprimeable number, because it can be changed into a prime (23506543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2918 + ... + 7451.

It is an arithmetic number, because the mean of its divisors is an integer number (5879790).

Almost surely, 2^23506523 is an apocalyptic number.

23506523 is a deficient number, since it is larger than the sum of its proper divisors (12637).

23506523 is a wasteful number, since it uses less digits than its factorization.

23506523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12636.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 23506523 is about 4848.3526068140. The cubic root of 23506523 is about 286.4592154836.

The spelling of 23506523 in words is "twenty-three million, five hundred six thousand, five hundred twenty-three".