22005253 has 4 divisors (see below), whose sum is σ = 22014828. Its totient is φ = 21995680.

The previous prime is 22005241. The next prime is 22005271. The reversal of 22005253 is 35250022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7739524 + 14265729 = 2782^2 + 3777^2 .

It is a cyclic number.

It is not a de Polignac number, because 22005253 - 2¹³ = 21997061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22005253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22005853) 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, 963 + ... + 6703.

It is an arithmetic number, because the mean of its divisors is an integer number (5503707).

Almost surely, 2^22005253 is an apocalyptic number.

It is an amenable number.

22005253 is a deficient number, since it is larger than the sum of its proper divisors (9575).

22005253 is an equidigital number, since it uses as much as digits as its factorization.

22005253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9574.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 22005253 is about 4690.9756980824. The cubic root of 22005253 is about 280.2262329765.

Adding to 22005253 its reverse (35250022), we get a palindrome (57255275).

The spelling of 22005253 in words is "twenty-two million, five thousand, two hundred fifty-three".