23500005 has 32 divisors (see below), whose sum is σ = 39398400. Its totient is φ = 11945472.

The previous prime is 23500003. The next prime is 23500013. The reversal of 23500005 is 50000532.

It is not a de Polignac number, because 23500005 - 2¹ = 23500003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23500003) 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 31 ways as a sum of consecutive naturals, for example, 38412 + ... + 39018.

It is an arithmetic number, because the mean of its divisors is an integer number (1231200).

Almost surely, 2^23500005 is an apocalyptic number.

It is an amenable number.

23500005 is a deficient number, since it is larger than the sum of its proper divisors (15898395).

23500005 is a wasteful number, since it uses less digits than its factorization.

23500005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733.

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 23500005 is about 4847.6803731269. The cubic root of 23500005 is about 286.4327361135.

Adding to 23500005 its reverse (50000532), we get a palindrome (73500537).

The spelling of 23500005 in words is "twenty-three million, five hundred thousand, five".