5253445321 has 4 divisors (see below), whose sum is σ = 5375618512. Its totient is φ = 5131272132.

The previous prime is 5253445319. The next prime is 5253445343. The reversal of 5253445321 is 1235443525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5253445321 - 2¹ = 5253445319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5253445361) 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, 61086531 + ... + 61086616.

It is an arithmetic number, because the mean of its divisors is an integer number (1343904628).

Almost surely, 2^5253445321 is an apocalyptic number.

It is an amenable number.

5253445321 is a deficient number, since it is larger than the sum of its proper divisors (122173191).

5253445321 is a wasteful number, since it uses less digits than its factorization.

5253445321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122173190.

The product of its digits is 72000, while the sum is 34.

The square root of 5253445321 is about 72480.6548052651. The cubic root of 5253445321 is about 1738.3934306587.

Adding to 5253445321 its reverse (1235443525), we get a palindrome (6488888846).

The spelling of 5253445321 in words is "five billion, two hundred fifty-three million, four hundred forty-five thousand, three hundred twenty-one".