22565045 has 8 divisors (see below), whose sum is σ = 28011960. Its totient is φ = 17429440.

The previous prime is 22565041. The next prime is 22565107. The reversal of 22565045 is 54056522.

It can be written as a sum of positive squares in 4 ways, for example, as 5317636 + 17247409 = 2306^2 + 4153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22565045 - 2² = 22565041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 22564999 and 22565017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22565041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77666 + ... + 77955.

It is an arithmetic number, because the mean of its divisors is an integer number (3501495).

Almost surely, 2^22565045 is an apocalyptic number.

It is an amenable number.

22565045 is a deficient number, since it is larger than the sum of its proper divisors (5446915).

22565045 is a wasteful number, since it uses less digits than its factorization.

22565045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155655.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 22565045 is about 4750.2678871828. The cubic root of 22565045 is about 282.5825899958.

The spelling of 22565045 in words is "twenty-two million, five hundred sixty-five thousand, forty-five".