22646255 has 4 divisors (see below), whose sum is σ = 27175512. Its totient is φ = 18117000.

The previous prime is 22646249. The next prime is 22646269. The reversal of 22646255 is 55264622.

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

It is not a de Polignac number, because 22646255 - 2¹² = 22642159 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 3 ways as a sum of consecutive naturals, for example, 2264621 + ... + 2264630.

It is an arithmetic number, because the mean of its divisors is an integer number (6793878).

Almost surely, 2^22646255 is an apocalyptic number.

22646255 is a deficient number, since it is larger than the sum of its proper divisors (4529257).

22646255 is an equidigital number, since it uses as much as digits as its factorization.

22646255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4529256.

The product of its digits is 28800, while the sum is 32.

The square root of 22646255 is about 4758.8081491062. The cubic root of 22646255 is about 282.9211823776.

The spelling of 22646255 in words is "twenty-two million, six hundred forty-six thousand, two hundred fifty-five".