2545404793 has 2 divisors, whose sum is σ = 2545404794. Its totient is φ = 2545404792.

The previous prime is 2545404769. The next prime is 2545404809. The reversal of 2545404793 is 3974045452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2051365264 + 494039529 = 45292^2 + 22227^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2545404793 is a prime.

It is not a weakly prime, because it can be changed into another prime (2545404193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272702396 + 1272702397.

It is an arithmetic number, because the mean of its divisors is an integer number (1272702397).

Almost surely, 2^2545404793 is an apocalyptic number.

It is an amenable number.

2545404793 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545404793 is an equidigital number, since it uses as much as digits as its factorization.

2545404793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 43.

The square root of 2545404793 is about 50452.0048461902. The cubic root of 2545404793 is about 1365.3760663737.

The spelling of 2545404793 in words is "two billion, five hundred forty-five million, four hundred four thousand, seven hundred ninety-three".