23085585 has 12 divisors (see below), whose sum is σ = 40015092. Its totient is φ = 12312288.

The previous prime is 23085529. The next prime is 23085599. The reversal of 23085585 is 58558032.

It can be written as a sum of positive squares in 2 ways, for example, as 4835601 + 18249984 = 2199^2 + 4272^2 .

It is not a de Polignac number, because 23085585 - 2¹³ = 23077393 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 256462 + ... + 256551.

It is an arithmetic number, because the mean of its divisors is an integer number (3334591).

Almost surely, 2^23085585 is an apocalyptic number.

It is an amenable number.

23085585 is a deficient number, since it is larger than the sum of its proper divisors (16929507).

23085585 is a wasteful number, since it uses less digits than its factorization.

23085585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513024 (or 513021 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 23085585 is about 4804.7460911062. The cubic root of 23085585 is about 284.7390039030.

The spelling of 23085585 in words is "twenty-three million, eighty-five thousand, five hundred eighty-five".