27530030005 has 8 divisors (see below), whose sum is σ = 33928902072. Its totient is φ = 21428779968.

The previous prime is 27530029979. The next prime is 27530030009. The reversal of 27530030005 is 50003003572.

It can be written as a sum of positive squares in 4 ways, for example, as 15816080644 + 11713949361 = 125762^2 + 108231^2 .

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 27530030005 - 2¹⁷ = 27529898933 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 (27530030009) 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, 74405302 + ... + 74405671.

It is an arithmetic number, because the mean of its divisors is an integer number (4241112759).

Almost surely, 2^27530030005 is an apocalyptic number.

It is an amenable number.

27530030005 is a deficient number, since it is larger than the sum of its proper divisors (6398872067).

27530030005 is a wasteful number, since it uses less digits than its factorization.

27530030005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148811015.

The product of its (nonzero) digits is 3150, while the sum is 25.

Adding to 27530030005 its reverse (50003003572), we get a palindrome (77533033577).

The spelling of 27530030005 in words is "twenty-seven billion, five hundred thirty million, thirty thousand, five".