23021255 has 8 divisors (see below), whose sum is σ = 29079600. Its totient is φ = 17447616.

The previous prime is 23021249. The next prime is 23021261. The reversal of 23021255 is 55212032.

It is an interprime number because it is at equal distance from previous prime (23021249) and next prime (23021261).

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

It is a cyclic number.

It is not a de Polignac number, because 23021255 - 2²⁴ = 6244039 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121070 + ... + 121259.

It is an arithmetic number, because the mean of its divisors is an integer number (3634950).

Almost surely, 2^23021255 is an apocalyptic number.

23021255 is a deficient number, since it is larger than the sum of its proper divisors (6058345).

23021255 is a wasteful number, since it uses less digits than its factorization.

23021255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242353.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 23021255 is about 4798.0469985193. The cubic root of 23021255 is about 284.4742744809.

Adding to 23021255 its reverse (55212032), we get a palindrome (78233287).

The spelling of 23021255 in words is "twenty-three million, twenty-one thousand, two hundred fifty-five".