23505423 has 24 divisors (see below), whose sum is σ = 33081600. Its totient is φ = 14838720.

The previous prime is 23505403. The next prime is 23505431. The reversal of 23505423 is 32450532.

It is not a de Polignac number, because 23505423 - 2⁹ = 23504911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23505393 and 23505402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23505403) 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 in 23 ways as a sum of consecutive naturals, for example, 297498 + ... + 297576.

It is an arithmetic number, because the mean of its divisors is an integer number (1378400).

Almost surely, 2^23505423 is an apocalyptic number.

23505423 is a deficient number, since it is larger than the sum of its proper divisors (9576177).

23505423 is an equidigital number, since it uses as much as digits as its factorization.

23505423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 23505423 is about 4848.2391648928. The cubic root of 23505423 is about 286.4547470778.

Adding to 23505423 its reverse (32450532), we get a palindrome (55955955).

The spelling of 23505423 in words is "twenty-three million, five hundred five thousand, four hundred twenty-three".