2545261193 has 2 divisors, whose sum is σ = 2545261194. Its totient is φ = 2545261192.

The previous prime is 2545261177. The next prime is 2545261217. The reversal of 2545261193 is 3911625452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1779742969 + 765518224 = 42187^2 + 27668^2 .

It is a cyclic number.

It is not a de Polignac number, because 2545261193 - 2⁴ = 2545261177 is a prime.

It is not a weakly prime, because it can be changed into another prime (2545261123) 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, 1272630596 + 1272630597.

It is an arithmetic number, because the mean of its divisors is an integer number (1272630597).

Almost surely, 2^2545261193 is an apocalyptic number.

It is an amenable number.

2545261193 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545261193 is an equidigital number, since it uses as much as digits as its factorization.

2545261193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 38.

The square root of 2545261193 is about 50450.5816913938. The cubic root of 2545261193 is about 1365.3503898172.

The spelling of 2545261193 in words is "two billion, five hundred forty-five million, two hundred sixty-one thousand, one hundred ninety-three".