8287535261 has 4 divisors (see below), whose sum is σ = 8311013052. Its totient is φ = 8264057472.

The previous prime is 8287535251. The next prime is 8287535299. The reversal of 8287535261 is 1625357828.

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 3864487225 + 4423048036 = 62165^2 + 66506^2 .

It is a cyclic number.

It is not a de Polignac number, because 8287535261 - 2¹⁸ = 8287273117 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 (8287535231) 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, 11738366 + ... + 11739071.

It is an arithmetic number, because the mean of its divisors is an integer number (2077753263).

Almost surely, 2^8287535261 is an apocalyptic number.

It is an amenable number.

8287535261 is a deficient number, since it is larger than the sum of its proper divisors (23477791).

8287535261 is a wasteful number, since it uses less digits than its factorization.

8287535261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23477790.

The product of its digits is 806400, while the sum is 47.

The square root of 8287535261 is about 91035.9009457258. The cubic root of 8287535261 is about 2023.6797988107.

The spelling of 8287535261 in words is "eight billion, two hundred eighty-seven million, five hundred thirty-five thousand, two hundred sixty-one".