22263613 has 4 divisors (see below), whose sum is σ = 22568668. Its totient is φ = 21958560.

The previous prime is 22263601. The next prime is 22263623. The reversal of 22263613 is 31636222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31636222 = 2 ⋅15818111.

It can be written as a sum of positive squares in 2 ways, for example, as 3833764 + 18429849 = 1958^2 + 4293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22263613 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 (22263623) 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, 152418 + ... + 152563.

It is an arithmetic number, because the mean of its divisors is an integer number (5642167).

Almost surely, 2^22263613 is an apocalyptic number.

It is an amenable number.

22263613 is a deficient number, since it is larger than the sum of its proper divisors (305055).

22263613 is an equidigital number, since it uses as much as digits as its factorization.

22263613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305054.

The product of its digits is 2592, while the sum is 25.

The square root of 22263613 is about 4718.4333204995. The cubic root of 22263613 is about 281.3186651769.

Adding to 22263613 its reverse (31636222), we get a palindrome (53899835).

The spelling of 22263613 in words is "twenty-two million, two hundred sixty-three thousand, six hundred thirteen".