8086520081 has 4 divisors (see below), whose sum is σ = 8102990064. Its totient is φ = 8070050100.

The previous prime is 8086519981. The next prime is 8086520107. The reversal of 8086520081 is 1800256808.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8086520081 - 2¹⁰ = 8086519057 is a prime.

It is a super-2 number, since 2×8086520081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8086520881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8234255 + ... + 8235236.

It is an arithmetic number, because the mean of its divisors is an integer number (2025747516).

Almost surely, 2^8086520081 is an apocalyptic number.

It is an amenable number.

8086520081 is a deficient number, since it is larger than the sum of its proper divisors (16469983).

8086520081 is a wasteful number, since it uses less digits than its factorization.

8086520081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16469982.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 8086520081 is about 89925.0803780569. The cubic root of 8086520081 is about 2007.1841697035.

Adding to 8086520081 its reverse (1800256808), we get a palindrome (9886776889).

The spelling of 8086520081 in words is "eight billion, eighty-six million, five hundred twenty thousand, eighty-one".