27805005053 has 4 divisors (see below), whose sum is σ = 31777148640. Its totient is φ = 23832861468.

The previous prime is 27805005037. The next prime is 27805005077. The reversal of 27805005053 is 35050050872.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27805005053 - 2⁴ = 27805005037 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 (27805005013) 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, 1986071783 + ... + 1986071796.

It is an arithmetic number, because the mean of its divisors is an integer number (7944287160).

Almost surely, 2^27805005053 is an apocalyptic number.

It is an amenable number.

27805005053 is a deficient number, since it is larger than the sum of its proper divisors (3972143587).

27805005053 is an equidigital number, since it uses as much as digits as its factorization.

27805005053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972143586.

The product of its (nonzero) digits is 42000, while the sum is 35.

The spelling of 27805005053 in words is "twenty-seven billion, eight hundred five million, five thousand, fifty-three".