8521352801 has 4 divisors (see below), whose sum is σ = 9176841492. Its totient is φ = 7865864112.

The previous prime is 8521352771. The next prime is 8521352809. The reversal of 8521352801 is 1082531258.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2299298401 + 6222054400 = 47951^2 + 78880^2 .

It is a cyclic number.

It is not a de Polignac number, because 8521352801 - 2⁶ = 8521352737 is a prime.

It is a super-2 number, since 2×8521352801² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8521352809) 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, 327744326 + ... + 327744351.

It is an arithmetic number, because the mean of its divisors is an integer number (2294210373).

Almost surely, 2^8521352801 is an apocalyptic number.

It is an amenable number.

8521352801 is a deficient number, since it is larger than the sum of its proper divisors (655488691).

8521352801 is a wasteful number, since it uses less digits than its factorization.

8521352801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655488690.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 8521352801 is about 92311.1737602767. The cubic root of 8521352801 is about 2042.5350390075.

The spelling of 8521352801 in words is "eight billion, five hundred twenty-one million, three hundred fifty-two thousand, eight hundred one".