2197775057 has 2 divisors, whose sum is σ = 2197775058. Its totient is φ = 2197775056.

The previous prime is 2197775053. The next prime is 2197775117. The reversal of 2197775057 is 7505777912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2162622016 + 35153041 = 46504^2 + 5929^2 .

It is a cyclic number.

It is not a de Polignac number, because 2197775057 - 2² = 2197775053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2197774996 and 2197775014.

It is not a weakly prime, because it can be changed into another prime (2197775053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098887528 + 1098887529.

It is an arithmetic number, because the mean of its divisors is an integer number (1098887529).

Almost surely, 2^2197775057 is an apocalyptic number.

It is an amenable number.

2197775057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2197775057 is an equidigital number, since it uses as much as digits as its factorization.

2197775057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080450, while the sum is 50.

The square root of 2197775057 is about 46880.4336264075. The cubic root of 2197775057 is about 1300.1528532301.

The spelling of 2197775057 in words is "two billion, one hundred ninety-seven million, seven hundred seventy-five thousand, fifty-seven".