2253445165 has 4 divisors (see below), whose sum is σ = 2704134204. Its totient is φ = 1802756128.

The previous prime is 2253445147. The next prime is 2253445177. The reversal of 2253445165 is 5615443522.

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 1370998729 + 882446436 = 37027^2 + 29706^2 .

It is a cyclic number.

It is not a de Polignac number, because 2253445165 - 2¹¹ = 2253443117 is a prime.

It is a super-2 number, since 2×2253445165² = 10156030223323754450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225344512 + ... + 225344521.

It is an arithmetic number, because the mean of its divisors is an integer number (676033551).

Almost surely, 2^2253445165 is an apocalyptic number.

It is an amenable number.

2253445165 is a deficient number, since it is larger than the sum of its proper divisors (450689039).

2253445165 is an equidigital number, since it uses as much as digits as its factorization.

2253445165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450689038.

The product of its digits is 144000, while the sum is 37.

The square root of 2253445165 is about 47470.4662395473. The cubic root of 2253445165 is about 1311.0391624485.

Adding to 2253445165 its reverse (5615443522), we get a palindrome (7868888687).

The spelling of 2253445165 in words is "two billion, two hundred fifty-three million, four hundred forty-five thousand, one hundred sixty-five".