23281255 has 8 divisors (see below), whose sum is σ = 28331424. Its totient is φ = 18362400.

The previous prime is 23281241. The next prime is 23281301. The reversal of 23281255 is 55218232.

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

It is a de Polignac number, because none of the positive numbers 2^k-23281255 is a prime.

It is a Duffinian number.

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, 32436 + ... + 33145.

It is an arithmetic number, because the mean of its divisors is an integer number (3541428).

Almost surely, 2^23281255 is an apocalyptic number.

23281255 is a deficient number, since it is larger than the sum of its proper divisors (5050169).

23281255 is an equidigital number, since it uses as much as digits as its factorization.

23281255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65657.

The product of its digits is 4800, while the sum is 28.

The square root of 23281255 is about 4825.0652845324. The cubic root of 23281255 is about 285.5412102378.

Adding to 23281255 its reverse (55218232), we get a palindrome (78499487).

The spelling of 23281255 in words is "twenty-three million, two hundred eighty-one thousand, two hundred fifty-five".