8561022023 has 4 divisors (see below), whose sum is σ = 8649280080. Its totient is φ = 8472763968.

The previous prime is 8561021999. The next prime is 8561022037. The reversal of 8561022023 is 3202201658.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8561022023 - 2¹⁰ = 8561020999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8561322023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44128883 + ... + 44129076.

It is an arithmetic number, because the mean of its divisors is an integer number (2162320020).

Almost surely, 2^8561022023 is an apocalyptic number.

8561022023 is a deficient number, since it is larger than the sum of its proper divisors (88258057).

8561022023 is an equidigital number, since it uses as much as digits as its factorization.

8561022023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88258056.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 8561022023 is about 92525.7911233403. The cubic root of 8561022023 is about 2045.6996526396.

The spelling of 8561022023 in words is "eight billion, five hundred sixty-one million, twenty-two thousand, twenty-three".