2549744993 has 2 divisors, whose sum is σ = 2549744994. Its totient is φ = 2549744992.

The previous prime is 2549744909. The next prime is 2549745001. The reversal of 2549744993 is 3994479452.

2549744993 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., 2260336849 + 289408144 = 47543^2 + 17012^2 .

It is a cyclic number.

It is not a de Polignac number, because 2549744993 - 2⁸ = 2549744737 is a prime.

It is not a weakly prime, because it can be changed into another prime (2549744903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1274872496 + 1274872497.

It is an arithmetic number, because the mean of its divisors is an integer number (1274872497).

Almost surely, 2^2549744993 is an apocalyptic number.

It is an amenable number.

2549744993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2549744993 is an equidigital number, since it uses as much as digits as its factorization.

2549744993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 56.

The square root of 2549744993 is about 50494.9996831369. Note that the first 3 decimals coincide. The cubic root of 2549744993 is about 1366.1516653720.

The spelling of 2549744993 in words is "two billion, five hundred forty-nine million, seven hundred forty-four thousand, nine hundred ninety-three".