23525543 has 4 divisors (see below), whose sum is σ = 23645160. Its totient is φ = 23405928.

The previous prime is 23525533. The next prime is 23525549. The reversal of 23525543 is 34552532.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23525543 - 2⁶ = 23525479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23525549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59513 + ... + 59906.

It is an arithmetic number, because the mean of its divisors is an integer number (5911290).

Almost surely, 2^23525543 is an apocalyptic number.

23525543 is a deficient number, since it is larger than the sum of its proper divisors (119617).

23525543 is a wasteful number, since it uses less digits than its factorization.

23525543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119616.

The product of its digits is 18000, while the sum is 29.

The square root of 23525543 is about 4850.3137011950. The cubic root of 23525543 is about 286.5364562482.

The spelling of 23525543 in words is "twenty-three million, five hundred twenty-five thousand, five hundred forty-three".