23536513 has 24 divisors (see below), whose sum is σ = 32175360. Its totient is φ = 16924320.

The previous prime is 23536511. The next prime is 23536537. The reversal of 23536513 is 31563532.

It is not a de Polignac number, because 23536513 - 2¹ = 23536511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23536511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5328 + ... + 8686.

It is an arithmetic number, because the mean of its divisors is an integer number (1340640).

Almost surely, 2^23536513 is an apocalyptic number.

It is an amenable number.

23536513 is a deficient number, since it is larger than the sum of its proper divisors (8638847).

23536513 is a wasteful number, since it uses less digits than its factorization.

23536513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397 (or 3390 counting only the distinct ones).

The product of its digits is 8100, while the sum is 28.

The square root of 23536513 is about 4851.4444240865. Note that the first 4 decimals coincide. The cubic root of 23536513 is about 286.5809868034.

The spelling of 23536513 in words is "twenty-three million, five hundred thirty-six thousand, five hundred thirteen".