4223251765 has 4 divisors (see below), whose sum is σ = 5067902124. Its totient is φ = 3378601408.

The previous prime is 4223251687. The next prime is 4223251783. The reversal of 4223251765 is 5671523224.

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 2890782756 + 1332469009 = 53766^2 + 36503^2 .

It is a cyclic number.

It is not a de Polignac number, because 4223251765 - 2¹¹ = 4223249717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422325172 + ... + 422325181.

It is an arithmetic number, because the mean of its divisors is an integer number (1266975531).

Almost surely, 2^4223251765 is an apocalyptic number.

It is an amenable number.

4223251765 is a deficient number, since it is larger than the sum of its proper divisors (844650359).

4223251765 is an equidigital number, since it uses as much as digits as its factorization.

4223251765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844650358.

The product of its digits is 100800, while the sum is 37.

The square root of 4223251765 is about 64986.5506470377. The cubic root of 4223251765 is about 1616.4005544677.

Adding to 4223251765 its reverse (5671523224), we get a palindrome (9894774989).

The spelling of 4223251765 in words is "four billion, two hundred twenty-three million, two hundred fifty-one thousand, seven hundred sixty-five".