5587305721 has 8 divisors (see below), whose sum is σ = 5612798984. Its totient is φ = 5561861760.

The previous prime is 5587305667. The next prime is 5587305733. The reversal of 5587305721 is 1275037855.

It can be written as a sum of positive squares in 4 ways, for example, as 1836025 + 5585469696 = 1355^2 + 74736^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5587305721 - 2¹⁹ = 5586781433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5587305781) 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, 225151 + ... + 248731.

It is an arithmetic number, because the mean of its divisors is an integer number (701599873).

Almost surely, 2^5587305721 is an apocalyptic number.

It is an amenable number.

5587305721 is a deficient number, since it is larger than the sum of its proper divisors (25493263).

5587305721 is a wasteful number, since it uses less digits than its factorization.

5587305721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24651.

The product of its (nonzero) digits is 294000, while the sum is 43.

The square root of 5587305721 is about 74748.2823949822. The cubic root of 5587305721 is about 1774.4651667478.

The spelling of 5587305721 in words is "five billion, five hundred eighty-seven million, three hundred five thousand, seven hundred twenty-one".