22553345 has 4 divisors (see below), whose sum is σ = 27064020. Its totient is φ = 18042672.

The previous prime is 22553291. The next prime is 22553359. The reversal of 22553345 is 54335522.

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 10394176 + 12159169 = 3224^2 + 3487^2 .

It is a cyclic number.

It is not a de Polignac number, because 22553345 - 2¹² = 22549249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2255330 + ... + 2255339.

It is an arithmetic number, because the mean of its divisors is an integer number (6766005).

Almost surely, 2^22553345 is an apocalyptic number.

It is an amenable number.

22553345 is a deficient number, since it is larger than the sum of its proper divisors (4510675).

22553345 is an equidigital number, since it uses as much as digits as its factorization.

22553345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510674.

The product of its digits is 18000, while the sum is 29.

The square root of 22553345 is about 4749.0362180131. The cubic root of 22553345 is about 282.5337417603.

Adding to 22553345 its reverse (54335522), we get a palindrome (76888867).

The spelling of 22553345 in words is "twenty-two million, five hundred fifty-three thousand, three hundred forty-five".