22265405 has 4 divisors (see below), whose sum is σ = 26718492. Its totient is φ = 17812320.

The previous prime is 22265401. The next prime is 22265413. The reversal of 22265405 is 50456222.

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 14182756 + 8082649 = 3766^2 + 2843^2 .

It is not a de Polignac number, because 22265405 - 2² = 22265401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22265401) 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, 2226536 + ... + 2226545.

It is an arithmetic number, because the mean of its divisors is an integer number (6679623).

Almost surely, 2^22265405 is an apocalyptic number.

It is an amenable number.

22265405 is a deficient number, since it is larger than the sum of its proper divisors (4453087).

22265405 is an equidigital number, since it uses as much as digits as its factorization.

22265405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4453086.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 22265405 is about 4718.6232102171. The cubic root of 22265405 is about 281.3262127617.

The spelling of 22265405 in words is "twenty-two million, two hundred sixty-five thousand, four hundred five".