2056180913 has 2 divisors, whose sum is σ = 2056180914. Its totient is φ = 2056180912.

The previous prime is 2056180879. The next prime is 2056180921. The reversal of 2056180913 is 3190816502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1605765184 + 450415729 = 40072^2 + 21223^2 .

It is a cyclic number.

It is not a de Polignac number, because 2056180913 - 2¹⁴ = 2056164529 is a prime.

It is not a weakly prime, because it can be changed into another prime (2056180943) 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, 1028090456 + 1028090457.

It is an arithmetic number, because the mean of its divisors is an integer number (1028090457).

Almost surely, 2^2056180913 is an apocalyptic number.

It is an amenable number.

2056180913 is a deficient number, since it is larger than the sum of its proper divisors (1).

2056180913 is an equidigital number, since it uses as much as digits as its factorization.

2056180913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 2056180913 is about 45345.1310837228. The cubic root of 2056180913 is about 1271.6095312129.

The spelling of 2056180913 in words is "two billion, fifty-six million, one hundred eighty thousand, nine hundred thirteen".