23535 has 12 divisors (see below), whose sum is σ = 40872. Its totient is φ = 12528.

The previous prime is 23531. The next prime is 23537. The reversal of 23535 is 53532.

It is not a de Polignac number, because 23535 - 2² = 23531 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 16.

It is a nialpdrome in base 14.

It is a zygodrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217 + ... + 306.

It is an arithmetic number, because the mean of its divisors is an integer number (3406).

2²³⁵³⁵ is an apocalyptic number.

23535 is a deficient number, since it is larger than the sum of its proper divisors (17337).

23535 is a wasteful number, since it uses less digits than its factorization.

23535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 531 counting only the distinct ones).

The product of its digits is 450, while the sum is 18.

The square root of 23535 is about 153.4112121065. The cubic root of 23535 is about 28.6574845900.

The spelling of 23535 in words is "twenty-three thousand, five hundred thirty-five".