8513135560 has 32 divisors (see below), whose sum is σ = 20281295160. Its totient is φ = 3204944896.

The previous prime is 8513135557. The next prime is 8513135563. The reversal of 8513135560 is 655313158.

It is an interprime number because it is at equal distance from previous prime (8513135557) and next prime (8513135563).

It can be written as a sum of positive squares in 4 ways, for example, as 8422467076 + 90668484 = 91774^2 + 9522^2 .

It is not an unprimeable number, because it can be changed into a prime (8513135563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6258979 + ... + 6260338.

Almost surely, 2^8513135560 is an apocalyptic number.

It is an amenable number.

8513135560 is an abundant number, since it is smaller than the sum of its proper divisors (11768159600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8513135560 is a wasteful number, since it uses less digits than its factorization.

8513135560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12519345 (or 12519341 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 8513135560 is about 92266.6546483615. The cubic root of 8513135560 is about 2041.8782809804.

The spelling of 8513135560 in words is "eight billion, five hundred thirteen million, one hundred thirty-five thousand, five hundred sixty".