22481353 has 4 divisors (see below), whose sum is σ = 22504900. Its totient is φ = 22457808.

The previous prime is 22481341. The next prime is 22481357. The reversal of 22481353 is 35318422.

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 21233664 + 1247689 = 4608^2 + 1117^2 .

It is a cyclic number.

It is not a de Polignac number, because 22481353 - 2⁵ = 22481321 is a prime.

It is a super-2 number, since 2×22481353² = 1010822465421218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22481357) 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, 10278 + ... + 12271.

It is an arithmetic number, because the mean of its divisors is an integer number (5626225).

Almost surely, 2^22481353 is an apocalyptic number.

It is an amenable number.

22481353 is a deficient number, since it is larger than the sum of its proper divisors (23547).

22481353 is an equidigital number, since it uses as much as digits as its factorization.

22481353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23546.

The product of its digits is 5760, while the sum is 28.

The square root of 22481353 is about 4741.4505164559. The cubic root of 22481353 is about 282.2327982261.

Adding to 22481353 its reverse (35318422), we get a palindrome (57799775).

The spelling of 22481353 in words is "twenty-two million, four hundred eighty-one thousand, three hundred fifty-three".