22253345 has 4 divisors (see below), whose sum is σ = 26704020. Its totient is φ = 17802672.

The previous prime is 22253327. The next prime is 22253347. The reversal of 22253345 is 54335222.

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 3182656 + 19070689 = 1784^2 + 4367^2 .

It is a cyclic number.

It is not a de Polignac number, because 22253345 - 2¹⁴ = 22236961 is a prime.

It is a super-2 number, since 2×22253345² = 990422727378050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22253347) 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, 2225330 + ... + 2225339.

It is an arithmetic number, because the mean of its divisors is an integer number (6676005).

Almost surely, 2^22253345 is an apocalyptic number.

It is an amenable number.

22253345 is a deficient number, since it is larger than the sum of its proper divisors (4450675).

22253345 is an equidigital number, since it uses as much as digits as its factorization.

22253345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4450674.

The product of its digits is 7200, while the sum is 26.

The square root of 22253345 is about 4717.3451219939. The cubic root of 22253345 is about 281.2754103791.

Adding to 22253345 its reverse (54335222), we get a palindrome (76588567).

The spelling of 22253345 in words is "twenty-two million, two hundred fifty-three thousand, three hundred forty-five".