23555 has 8 divisors (see below), whose sum is σ = 32352. Its totient is φ = 16128.

The previous prime is 23549. The next prime is 23557. The reversal of 23555 is 55532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23555 - 2⁴ = 23539 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (23557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302 + ... + 371.

It is an arithmetic number, because the mean of its divisors is an integer number (4044).

2²³⁵⁵⁵ is an apocalyptic number.

23555 is a deficient number, since it is larger than the sum of its proper divisors (8797).

23555 is an equidigital number, since it uses as much as digits as its factorization.

23555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685.

The product of its digits is 750, while the sum is 20.

The square root of 23555 is about 153.4763825479. The cubic root of 23555 is about 28.6655999843.

The spelling of 23555 in words is "twenty-three thousand, five hundred fifty-five".