8533221495 has 16 divisors (see below), whose sum is σ = 13669447680. Its totient is φ = 4545620384.

The previous prime is 8533221491. The next prime is 8533221511. The reversal of 8533221495 is 5941223358.

It is a cyclic number.

It is not a de Polignac number, because 8533221495 - 2² = 8533221491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8533221491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326439 + ... + 351608.

It is an arithmetic number, because the mean of its divisors is an integer number (854340480).

Almost surely, 2^8533221495 is an apocalyptic number.

8533221495 is a deficient number, since it is larger than the sum of its proper divisors (5136226185).

8533221495 is a wasteful number, since it uses less digits than its factorization.

8533221495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678894.

The product of its digits is 259200, while the sum is 42.

The square root of 8533221495 is about 92375.4377256205. The cubic root of 8533221495 is about 2043.4828923053.

The spelling of 8533221495 in words is "eight billion, five hundred thirty-three million, two hundred twenty-one thousand, four hundred ninety-five".