8513053517 has 4 divisors (see below), whose sum is σ = 8513315580. Its totient is φ = 8512791456.

The previous prime is 8513053481. The next prime is 8513053529. The reversal of 8513053517 is 7153503158.

It is a happy number.

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 200902276 + 8312151241 = 14174^2 + 91171^2 .

It is a cyclic number.

It is not a de Polignac number, because 8513053517 - 2⁶ = 8513053453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8513053597) 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, 74042 + ... + 150027.

It is an arithmetic number, because the mean of its divisors is an integer number (2128328895).

Almost surely, 2^8513053517 is an apocalyptic number.

It is an amenable number.

8513053517 is a deficient number, since it is larger than the sum of its proper divisors (262063).

8513053517 is a wasteful number, since it uses less digits than its factorization.

8513053517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262062.

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 8513053517 is about 92266.2100500503. The cubic root of 8513053517 is about 2041.8717216128.

The spelling of 8513053517 in words is "eight billion, five hundred thirteen million, fifty-three thousand, five hundred seventeen".