27775530053 has 4 divisors (see below), whose sum is σ = 29409384780. Its totient is φ = 26141675328.

The previous prime is 27775530031. The next prime is 27775530059. The reversal of 27775530053 is 35003557772.

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 7735730209 + 20039799844 = 87953^2 + 141562^2 .

It is a cyclic number.

It is not a de Polignac number, because 27775530053 - 2⁶ = 27775529989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27775529986 and 27775530013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27775530059) 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 3 ways as a sum of consecutive naturals, for example, 816927338 + ... + 816927371.

It is an arithmetic number, because the mean of its divisors is an integer number (7352346195).

Almost surely, 2^27775530053 is an apocalyptic number.

It is an amenable number.

27775530053 is a deficient number, since it is larger than the sum of its proper divisors (1633854727).

27775530053 is a wasteful number, since it uses less digits than its factorization.

27775530053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633854726.

The product of its (nonzero) digits is 771750, while the sum is 44.

The spelling of 27775530053 in words is "twenty-seven billion, seven hundred seventy-five million, five hundred thirty thousand, fifty-three".