23506533 has 24 divisors (see below), whose sum is σ = 35283456. Its totient is φ = 15069600.

The previous prime is 23506517. The next prime is 23506541. The reversal of 23506533 is 33560532.

23506533 is a `hidden beast` number, since 2 + 3 + 5 + 0 + 653 + 3 = 666.

It is not a de Polignac number, because 23506533 - 2⁴ = 23506517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23506497 and 23506506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23506543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25348 + ... + 26258.

It is an arithmetic number, because the mean of its divisors is an integer number (1470144).

Almost surely, 2^23506533 is an apocalyptic number.

It is an amenable number.

23506533 is a deficient number, since it is larger than the sum of its proper divisors (11776923).

23506533 is a wasteful number, since it uses less digits than its factorization.

23506533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025 (or 1022 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 27.

The square root of 23506533 is about 4848.3536380920. The cubic root of 23506533 is about 286.4592561049.

The spelling of 23506533 in words is "twenty-three million, five hundred six thousand, five hundred thirty-three".