23211255 has 32 divisors (see below), whose sum is σ = 40803840. Its totient is φ = 11214720.

The previous prime is 23211233. The next prime is 23211257. The reversal of 23211255 is 55211232.

It is not a de Polignac number, because 23211255 - 2¹⁵ = 23178487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23211257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4785 + ... + 8325.

It is an arithmetic number, because the mean of its divisors is an integer number (1275120).

Almost surely, 2^23211255 is an apocalyptic number.

23211255 is a deficient number, since it is larger than the sum of its proper divisors (17592585).

23211255 is a wasteful number, since it uses less digits than its factorization.

23211255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3591.

The product of its digits is 600, while the sum is 21.

The square root of 23211255 is about 4817.8060359462. The cubic root of 23211255 is about 285.2547429942.

Adding to 23211255 its reverse (55211232), we get a palindrome (78422487).

The spelling of 23211255 in words is "twenty-three million, two hundred eleven thousand, two hundred fifty-five".