2545273447 has 2 divisors, whose sum is σ = 2545273448. Its totient is φ = 2545273446.

The previous prime is 2545273433. The next prime is 2545273469. The reversal of 2545273447 is 7443725452.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2545273447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2545273487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272636723 + 1272636724.

It is an arithmetic number, because the mean of its divisors is an integer number (1272636724).

Almost surely, 2^2545273447 is an apocalyptic number.

2545273447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545273447 is an equidigital number, since it uses as much as digits as its factorization.

2545273447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 940800, while the sum is 43.

The square root of 2545273447 is about 50450.7031368246. The cubic root of 2545273447 is about 1365.3525809449.

Adding to 2545273447 its reverse (7443725452), we get a palindrome (9988998899).

The spelling of 2545273447 in words is "two billion, five hundred forty-five million, two hundred seventy-three thousand, four hundred forty-seven".