8520553986223 has 2 divisors, whose sum is σ = 8520553986224. Its totient is φ = 8520553986222.

The previous prime is 8520553986211. The next prime is 8520553986239. The reversal of 8520553986223 is 3226893550258.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8520553986223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8520553986283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4260276993111 + 4260276993112.

It is an arithmetic number, because the mean of its divisors is an integer number (4260276993112).

Almost surely, 2^{8520553986223} is an apocalyptic number.

8520553986223 is a deficient number, since it is larger than the sum of its proper divisors (1).

8520553986223 is an equidigital number, since it uses as much as digits as its factorization.

8520553986223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104000, while the sum is 58.

The spelling of 8520553986223 in words is "eight trillion, five hundred twenty billion, five hundred fifty-three million, nine hundred eighty-six thousand, two hundred twenty-three".