27057020057 has 2 divisors, whose sum is σ = 27057020058. Its totient is φ = 27057020056.

The previous prime is 27057020051. The next prime is 27057020059. The reversal of 27057020057 is 75002075072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24807510016 + 2249510041 = 157504^2 + 47429^2 .

It is a cyclic number.

It is not a de Polignac number, because 27057020057 - 2⁴ = 27057020041 is a prime.

Together with 27057020059, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 27057019999 and 27057020026.

It is not a weakly prime, because it can be changed into another prime (27057020051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13528510028 + 13528510029.

It is an arithmetic number, because the mean of its divisors is an integer number (13528510029).

Almost surely, 2^27057020057 is an apocalyptic number.

It is an amenable number.

27057020057 is a deficient number, since it is larger than the sum of its proper divisors (1).

27057020057 is an equidigital number, since it uses as much as digits as its factorization.

27057020057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34300, while the sum is 35.

The spelling of 27057020057 in words is "twenty-seven billion, fifty-seven million, twenty thousand, fifty-seven".