22505841 has 12 divisors (see below), whose sum is σ = 34420932. Its totient is φ = 14121216.

The previous prime is 22505837. The next prime is 22505869. The reversal of 22505841 is 14850522.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19713600 + 2792241 = 4440^2 + 1671^2 .

It is not a de Polignac number, because 22505841 - 2² = 22505837 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22505801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73396 + ... + 73701.

It is an arithmetic number, because the mean of its divisors is an integer number (2868411).

Almost surely, 2^22505841 is an apocalyptic number.

It is an amenable number.

22505841 is a deficient number, since it is larger than the sum of its proper divisors (11915091).

22505841 is a wasteful number, since it uses less digits than its factorization.

22505841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147120 (or 147117 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 22505841 is about 4744.0321457596. The cubic root of 22505841 is about 282.3352358460.

The spelling of 22505841 in words is "twenty-two million, five hundred five thousand, eight hundred forty-one".