23536520 has 32 divisors (see below), whose sum is σ = 60523200. Its totient is φ = 8069568.

The previous prime is 23536511. The next prime is 23536537. The reversal of 23536520 is 2563532.

It is a self number, because there is not a number n which added to its sum of digits gives 23536520.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 41750 + ... + 42309.

It is an arithmetic number, because the mean of its divisors is an integer number (1891350).

Almost surely, 2^23536520 is an apocalyptic number.

23536520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23536520 is an abundant number, since it is smaller than the sum of its proper divisors (36986680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23536520 is a wasteful number, since it uses less digits than its factorization.

23536520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84077 (or 84073 counting only the distinct ones).

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

The square root of 23536520 is about 4851.4451455211. The cubic root of 23536520 is about 286.5810152141.

The spelling of 23536520 in words is "twenty-three million, five hundred thirty-six thousand, five hundred twenty".