8549029521 has 16 divisors (see below), whose sum is σ = 12721032000. Its totient is φ = 5674241664.

The previous prime is 8549029501. The next prime is 8549029523. The reversal of 8549029521 is 1259209458.

It is a happy number.

8549029521 is a `hidden beast` number, since 85 + 49 + 0 + 2 + 9 + 521 = 666.

It is not a de Polignac number, because 8549029521 - 2⁶ = 8549029457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8549029523) 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, 691296 + ... + 703553.

It is an arithmetic number, because the mean of its divisors is an integer number (795064500).

Almost surely, 2^8549029521 is an apocalyptic number.

It is an amenable number.

8549029521 is a deficient number, since it is larger than the sum of its proper divisors (4172002479).

8549029521 is a wasteful number, since it uses less digits than its factorization.

8549029521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395085 (or 1395079 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 8549029521 is about 92460.9621461944. The cubic root of 8549029521 is about 2044.7439831900.

The spelling of 8549029521 in words is "eight billion, five hundred forty-nine million, twenty-nine thousand, five hundred twenty-one".