23212255 has 8 divisors (see below), whose sum is σ = 30387024. Its totient is φ = 16881600.

The previous prime is 23212249. The next prime is 23212271. The reversal of 23212255 is 55221232.

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

It is not a de Polignac number, because 23212255 - 2³ = 23212247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210966 + ... + 211075.

It is an arithmetic number, because the mean of its divisors is an integer number (3798378).

Almost surely, 2^23212255 is an apocalyptic number.

23212255 is a deficient number, since it is larger than the sum of its proper divisors (7174769).

23212255 is a wasteful number, since it uses less digits than its factorization.

23212255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422057.

The product of its digits is 1200, while the sum is 22.

The square root of 23212255 is about 4817.9098165076. The cubic root of 23212255 is about 285.2588394357.

Adding to 23212255 its reverse (55221232), we get a palindrome (78433487).

The spelling of 23212255 in words is "twenty-three million, two hundred twelve thousand, two hundred fifty-five".