8206548521 has 8 divisors (see below), whose sum is σ = 8302535304. Its totient is φ = 8110794240.

The previous prime is 8206548517. The next prime is 8206548527. The reversal of 8206548521 is 1258456028.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3062072896 + 5144475625 = 55336^2 + 71725^2 .

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 8206548521 - 2² = 8206548517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8206548527) 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 7 ways as a sum of consecutive naturals, for example, 13391 + ... + 128811.

It is an arithmetic number, because the mean of its divisors is an integer number (1037816913).

Almost surely, 2^8206548521 is an apocalyptic number.

It is an amenable number.

8206548521 is a deficient number, since it is larger than the sum of its proper divisors (95986783).

8206548521 is a wasteful number, since it uses less digits than its factorization.

8206548521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116251.

The product of its (nonzero) digits is 153600, while the sum is 41.

The square root of 8206548521 is about 90590.0023236560. The cubic root of 8206548521 is about 2017.0663326667.

The spelling of 8206548521 in words is "eight billion, two hundred six million, five hundred forty-eight thousand, five hundred twenty-one".