27530855285 has 4 divisors (see below), whose sum is σ = 33037026348. Its totient is φ = 22024684224.

The previous prime is 27530855279. The next prime is 27530855293. The reversal of 27530855285 is 58255803572.

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 5382569956 + 22148285329 = 73366^2 + 148823^2 .

It is a cyclic number.

It is not a de Polignac number, because 27530855285 - 2¹⁴ = 27530838901 is a prime.

It is a super-2 number, since 2×27530855285² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2753085524 + ... + 2753085533.

It is an arithmetic number, because the mean of its divisors is an integer number (8259256587).

Almost surely, 2^27530855285 is an apocalyptic number.

It is an amenable number.

27530855285 is a deficient number, since it is larger than the sum of its proper divisors (5506171063).

27530855285 is an equidigital number, since it uses as much as digits as its factorization.

27530855285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506171062.

The product of its (nonzero) digits is 3360000, while the sum is 50.

The spelling of 27530855285 in words is "twenty-seven billion, five hundred thirty million, eight hundred fifty-five thousand, two hundred eighty-five".