23528505 has 64 divisors (see below), whose sum is σ = 50577408. Its totient is φ = 9020160.

The previous prime is 23528497. The next prime is 23528513. The reversal of 23528505 is 50582532.

It is an interprime number because it is at equal distance from previous prime (23528497) and next prime (23528513).

It is not a de Polignac number, because 23528505 - 2³ = 23528497 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 14232 + ... + 15798.

It is an arithmetic number, because the mean of its divisors is an integer number (790272).

Almost surely, 2^23528505 is an apocalyptic number.

It is an amenable number.

23528505 is an abundant number, since it is smaller than the sum of its proper divisors (27048903).

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

23528505 is a wasteful number, since it uses less digits than its factorization.

23528505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 23528505 is about 4850.6190326596. The cubic root of 23528505 is about 286.5484812680.

The spelling of 23528505 in words is "twenty-three million, five hundred twenty-eight thousand, five hundred five".