23017055 has 4 divisors (see below), whose sum is σ = 27620472. Its totient is φ = 18413640.

The previous prime is 23017051. The next prime is 23017079. The reversal of 23017055 is 55071032.

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

It is not a de Polignac number, because 23017055 - 2² = 23017051 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 23017055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23017051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2301701 + ... + 2301710.

It is an arithmetic number, because the mean of its divisors is an integer number (6905118).

Almost surely, 2^23017055 is an apocalyptic number.

23017055 is a deficient number, since it is larger than the sum of its proper divisors (4603417).

23017055 is an equidigital number, since it uses as much as digits as its factorization.

23017055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4603416.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 23017055 is about 4797.6093004746. The cubic root of 23017055 is about 284.4569735907.

Adding to 23017055 its reverse (55071032), we get a palindrome (78088087).

The spelling of 23017055 in words is "twenty-three million, seventeen thousand, fifty-five".