22850665 has 4 divisors (see below), whose sum is σ = 27420804. Its totient is φ = 18280528.

The previous prime is 22850657. The next prime is 22850683. The reversal of 22850665 is 56605822.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17774656 + 5076009 = 4216^2 + 2253^2 .

It is a cyclic number.

It is not a de Polignac number, because 22850665 - 2³ = 22850657 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 22850665.

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 3 ways as a sum of consecutive naturals, for example, 2285062 + ... + 2285071.

It is an arithmetic number, because the mean of its divisors is an integer number (6855201).

Almost surely, 2^22850665 is an apocalyptic number.

It is an amenable number.

22850665 is a deficient number, since it is larger than the sum of its proper divisors (4570139).

22850665 is an equidigital number, since it uses as much as digits as its factorization.

22850665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4570138.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 22850665 is about 4780.2369188148. The cubic root of 22850665 is about 283.7698699431.

The spelling of 22850665 in words is "twenty-two million, eight hundred fifty thousand, six hundred sixty-five".