8223527561 has 8 divisors (see below), whose sum is σ = 8449699104. Its totient is φ = 7998943680.

The previous prime is 8223527549. The next prime is 8223527567. The reversal of 8223527561 is 1657253228.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8223527561 - 2¹⁰ = 8223526537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8223527567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386411 + ... + 407136.

It is an arithmetic number, because the mean of its divisors is an integer number (1056212388).

Almost surely, 2^8223527561 is an apocalyptic number.

It is an amenable number.

8223527561 is a deficient number, since it is larger than the sum of its proper divisors (226171543).

8223527561 is a wasteful number, since it uses less digits than its factorization.

8223527561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793831.

The product of its digits is 201600, while the sum is 41.

The square root of 8223527561 is about 90683.6675537552. The cubic root of 8223527561 is about 2018.4564525122.

The spelling of 8223527561 in words is "eight billion, two hundred twenty-three million, five hundred twenty-seven thousand, five hundred sixty-one".