2545042393 has 2 divisors, whose sum is σ = 2545042394. Its totient is φ = 2545042392.

The previous prime is 2545042337. The next prime is 2545042397. The reversal of 2545042393 is 3932405452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1696368969 + 848673424 = 41187^2 + 29132^2 .

It is a cyclic number.

It is not a de Polignac number, because 2545042393 - 2⁹ = 2545041881 is a prime.

It is not a weakly prime, because it can be changed into another prime (2545042397) 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, 1272521196 + 1272521197.

It is an arithmetic number, because the mean of its divisors is an integer number (1272521197).

Almost surely, 2^2545042393 is an apocalyptic number.

It is an amenable number.

2545042393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545042393 is an equidigital number, since it uses as much as digits as its factorization.

2545042393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 2545042393 is about 50448.4131861449. The cubic root of 2545042393 is about 1365.3112651848.

The spelling of 2545042393 in words is "two billion, five hundred forty-five million, forty-two thousand, three hundred ninety-three".