23255489 has 4 divisors (see below), whose sum is σ = 23265156. Its totient is φ = 23245824.

The previous prime is 23255483. The next prime is 23255503. The reversal of 23255489 is 98455232.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4765489 + 18490000 = 2183^2 + 4300^2 .

It is a cyclic number.

It is not a de Polignac number, because 23255489 - 2²⁴ = 6478273 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23255483) 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, 1937 + ... + 7089.

It is an arithmetic number, because the mean of its divisors is an integer number (5816289).

Almost surely, 2^23255489 is an apocalyptic number.

It is an amenable number.

23255489 is a deficient number, since it is larger than the sum of its proper divisors (9667).

23255489 is an equidigital number, since it uses as much as digits as its factorization.

23255489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9666.

The product of its digits is 86400, while the sum is 38.

The square root of 23255489 is about 4822.3945296917. The cubic root of 23255489 is about 285.4358326045.

The spelling of 23255489 in words is "twenty-three million, two hundred fifty-five thousand, four hundred eighty-nine".