27805305053 has 8 divisors (see below), whose sum is σ = 28264589016. Its totient is φ = 27346132800.

The previous prime is 27805305037. The next prime is 27805305089. The reversal of 27805305053 is 35050350872.

It can be written as a sum of positive squares in 4 ways, for example, as 743044 + 27804562009 = 862^2 + 166747^2 .

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 27805305053 - 2⁴ = 27805305037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27805304998 and 27805305016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27805305953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583475 + ... + 629327.

It is an arithmetic number, because the mean of its divisors is an integer number (3533073627).

Almost surely, 2^27805305053 is an apocalyptic number.

It is an amenable number.

27805305053 is a deficient number, since it is larger than the sum of its proper divisors (459283963).

27805305053 is an equidigital number, since it uses as much as digits as its factorization.

27805305053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55855.

The product of its (nonzero) digits is 126000, while the sum is 38.

The spelling of 27805305053 in words is "twenty-seven billion, eight hundred five million, three hundred five thousand, fifty-three".