5281000609 has 4 divisors (see below), whose sum is σ = 5287868740. Its totient is φ = 5274132480.

The previous prime is 5281000607. The next prime is 5281000633. The reversal of 5281000609 is 9060001825.

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 2956314384 + 2324686225 = 54372^2 + 48215^2 .

It is a cyclic number.

It is not a de Polignac number, because 5281000609 - 2¹ = 5281000607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5281000603) 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, 3432912 + ... + 3434449.

It is an arithmetic number, because the mean of its divisors is an integer number (1321967185).

Almost surely, 2^5281000609 is an apocalyptic number.

It is an amenable number.

5281000609 is a deficient number, since it is larger than the sum of its proper divisors (6868131).

5281000609 is an equidigital number, since it uses as much as digits as its factorization.

5281000609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6868130.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 5281000609 is about 72670.4933862431. The cubic root of 5281000609 is about 1741.4275298980.

The spelling of 5281000609 in words is "five billion, two hundred eighty-one million, six hundred nine", and thus it is an aban number.