22855459 has 4 divisors (see below), whose sum is σ = 24933240. Its totient is φ = 20777680.

The previous prime is 22855457. The next prime is 22855477. The reversal of 22855459 is 95455822.

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

It is not a de Polignac number, because 22855459 - 2¹ = 22855457 is a prime.

It is a super-2 number, since 2×22855459² = 1044744012201362, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22855457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1038874 + ... + 1038895.

It is an arithmetic number, because the mean of its divisors is an integer number (6233310).

Almost surely, 2^22855459 is an apocalyptic number.

22855459 is a deficient number, since it is larger than the sum of its proper divisors (2077781).

22855459 is a wasteful number, since it uses less digits than its factorization.

22855459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077780.

The product of its digits is 144000, while the sum is 40.

The square root of 22855459 is about 4780.7383320989. The cubic root of 22855459 is about 283.7897132407.

It can be divided in two parts, 2285 and 5459, that added together give a square (7744 = 88²).

The spelling of 22855459 in words is "twenty-two million, eight hundred fifty-five thousand, four hundred fifty-nine".