22972255 has 4 divisors (see below), whose sum is σ = 27566712. Its totient is φ = 18377800.

The previous prime is 22972247. The next prime is 22972283. The reversal of 22972255 is 55227922.

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

It is not a de Polignac number, because 22972255 - 2³ = 22972247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22972255.

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, 2297221 + ... + 2297230.

It is an arithmetic number, because the mean of its divisors is an integer number (6891678).

Almost surely, 2^22972255 is an apocalyptic number.

22972255 is a deficient number, since it is larger than the sum of its proper divisors (4594457).

22972255 is an equidigital number, since it uses as much as digits as its factorization.

22972255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4594456.

The product of its digits is 25200, while the sum is 34.

The square root of 22972255 is about 4792.9380342333. The cubic root of 22972255 is about 284.2722996697.

The spelling of 22972255 in words is "twenty-two million, nine hundred seventy-two thousand, two hundred fifty-five".