2554493789 has 2 divisors, whose sum is σ = 2554493790. Its totient is φ = 2554493788.

The previous prime is 2554493761. The next prime is 2554493803. The reversal of 2554493789 is 9873944552.

2554493789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2554493764 + 25 = 50542^2 + 5^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2554493789 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2554493749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277246894 + 1277246895.

It is an arithmetic number, because the mean of its divisors is an integer number (1277246895).

Almost surely, 2^2554493789 is an apocalyptic number.

It is an amenable number.

2554493789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2554493789 is an equidigital number, since it uses as much as digits as its factorization.

2554493789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 56.

The square root of 2554493789 is about 50542.0002473191. Note that the first 3 decimals coincide. The cubic root of 2554493789 is about 1366.9992732869. Note that the first 3 decimals are identical.

The spelling of 2554493789 in words is "two billion, five hundred fifty-four million, four hundred ninety-three thousand, seven hundred eighty-nine".