23530055 has 4 divisors (see below), whose sum is σ = 28236072. Its totient is φ = 18824040.

The previous prime is 23530051. The next prime is 23530063. The reversal of 23530055 is 55003532.

It is a happy number.

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

It is not a de Polignac number, because 23530055 - 2² = 23530051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23530055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23530051) 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, 2353001 + ... + 2353010.

It is an arithmetic number, because the mean of its divisors is an integer number (7059018).

Almost surely, 2^23530055 is an apocalyptic number.

23530055 is a deficient number, since it is larger than the sum of its proper divisors (4706017).

23530055 is an equidigital number, since it uses as much as digits as its factorization.

23530055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4706016.

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 23530055 is about 4850.7788034500. The cubic root of 23530055 is about 286.5547734994.

Adding to 23530055 its reverse (55003532), we get a palindrome (78533587).

The spelling of 23530055 in words is "twenty-three million, five hundred thirty thousand, fifty-five".