22252313 has 4 divisors (see below), whose sum is σ = 22285860. Its totient is φ = 22218768.

The previous prime is 22252297. The next prime is 22252319. The reversal of 22252313 is 31325222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31325222 = 2 ⋅15662611.

It can be written as a sum of positive squares in 2 ways, for example, as 18983449 + 3268864 = 4357^2 + 1808^2 .

It is a cyclic number.

It is not a de Polignac number, because 22252313 - 2⁴ = 22252297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22252319) 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, 15758 + ... + 17111.

It is an arithmetic number, because the mean of its divisors is an integer number (5571465).

Almost surely, 2^22252313 is an apocalyptic number.

It is an amenable number.

22252313 is a deficient number, since it is larger than the sum of its proper divisors (33547).

22252313 is an equidigital number, since it uses as much as digits as its factorization.

22252313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33546.

The product of its digits is 720, while the sum is 20.

The square root of 22252313 is about 4717.2357371664. The cubic root of 22252313 is about 281.2710622580.

Adding to 22252313 its reverse (31325222), we get a palindrome (53577535).

The spelling of 22252313 in words is "twenty-two million, two hundred fifty-two thousand, three hundred thirteen".