8540517533 has 6 divisors (see below), whose sum is σ = 8726099166. Its totient is φ = 8358802232.

The previous prime is 8540517529. The next prime is 8540517571. The reversal of 8540517533 is 3357150458.

It can be written as a sum of positive squares in only one way, i.e., 7430095204 + 1110422329 = 86198^2 + 33323^2 .

It is not a de Polignac number, because 8540517533 - 2² = 8540517529 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 (8540577533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1930910 + ... + 1935327.

It is an arithmetic number, because the mean of its divisors is an integer number (1454349861).

Almost surely, 2^8540517533 is an apocalyptic number.

It is an amenable number.

8540517533 is a deficient number, since it is larger than the sum of its proper divisors (185581633).

8540517533 is an equidigital number, since it uses as much as digits as its factorization.

8540517533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3866331 (or 3866284 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 8540517533 is about 92414.9205107054. The cubic root of 8540517533 is about 2044.0651296867.

The spelling of 8540517533 in words is "eight billion, five hundred forty million, five hundred seventeen thousand, five hundred thirty-three".