8217322553 has 4 divisors (see below), whose sum is σ = 8964351888. Its totient is φ = 7470293220.

The previous prime is 8217322537. The next prime is 8217322567. The reversal of 8217322553 is 3552237128.

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 8217322553 - 2⁴ = 8217322537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8217322573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373514651 + ... + 373514672.

It is an arithmetic number, because the mean of its divisors is an integer number (2241087972).

Almost surely, 2^8217322553 is an apocalyptic number.

It is an amenable number.

8217322553 is a deficient number, since it is larger than the sum of its proper divisors (747029335).

8217322553 is a wasteful number, since it uses less digits than its factorization.

8217322553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747029334.

The product of its digits is 100800, while the sum is 38.

The square root of 8217322553 is about 90649.4487186767. The cubic root of 8217322553 is about 2017.9486538104.

The spelling of 8217322553 in words is "eight billion, two hundred seventeen million, three hundred twenty-two thousand, five hundred fifty-three".