2587288313 has 4 divisors (see below), whose sum is σ = 2650392948. Its totient is φ = 2524183680.

The previous prime is 2587288261. The next prime is 2587288337. The reversal of 2587288313 is 3138827852.

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 706071184 + 1881217129 = 26572^2 + 43373^2 .

It is a cyclic number.

It is not a de Polignac number, because 2587288313 - 2¹⁰ = 2587287289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2587288373) 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, 31552256 + ... + 31552337.

It is an arithmetic number, because the mean of its divisors is an integer number (662598237).

Almost surely, 2^2587288313 is an apocalyptic number.

It is an amenable number.

2587288313 is a deficient number, since it is larger than the sum of its proper divisors (63104635).

2587288313 is an equidigital number, since it uses as much as digits as its factorization.

2587288313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63104634.

The product of its digits is 645120, while the sum is 47.

The square root of 2587288313 is about 50865.3940611886. The cubic root of 2587288313 is about 1372.8242505382.

The spelling of 2587288313 in words is "two billion, five hundred eighty-seven million, two hundred eighty-eight thousand, three hundred thirteen".