27775005253 has 4 divisors (see below), whose sum is σ = 27775543788. Its totient is φ = 27774466720.

The previous prime is 27775005217. The next prime is 27775005281. The reversal of 27775005253 is 35250057772.

It is a happy number.

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 2745550404 + 25029454849 = 52398^2 + 158207^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27775005253 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 (27775405253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182608 + ... + 298153.

It is an arithmetic number, because the mean of its divisors is an integer number (6943885947).

Almost surely, 2^27775005253 is an apocalyptic number.

It is an amenable number.

27775005253 is a deficient number, since it is larger than the sum of its proper divisors (538535).

27775005253 is an equidigital number, since it uses as much as digits as its factorization.

27775005253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538534.

The product of its (nonzero) digits is 514500, while the sum is 43.

The spelling of 27775005253 in words is "twenty-seven billion, seven hundred seventy-five million, five thousand, two hundred fifty-three".