2545550393 has 2 divisors, whose sum is σ = 2545550394. Its totient is φ = 2545550392.

The previous prime is 2545550353. The next prime is 2545550407. The reversal of 2545550393 is 3930555452.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2448567289 + 96983104 = 49483^2 + 9848^2 .

It is a cyclic number.

It is not a de Polignac number, because 2545550393 - 2¹⁴ = 2545534009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2545550393.

It is not a weakly prime, because it can be changed into another prime (2545550333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272775196 + 1272775197.

It is an arithmetic number, because the mean of its divisors is an integer number (1272775197).

Almost surely, 2^2545550393 is an apocalyptic number.

It is an amenable number.

2545550393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545550393 is an equidigital number, since it uses as much as digits as its factorization.

2545550393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405000, while the sum is 41.

The square root of 2545550393 is about 50453.4477810982. The cubic root of 2545550393 is about 1365.4020995566.

The spelling of 2545550393 in words is "two billion, five hundred forty-five million, five hundred fifty thousand, three hundred ninety-three".