2730000257 has 2 divisors, whose sum is σ = 2730000258. Its totient is φ = 2730000256.

The previous prime is 2730000253. The next prime is 2730000281. The reversal of 2730000257 is 7520000372.

2730000257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1839037456 + 890962801 = 42884^2 + 29849^2 .

It is a cyclic number.

It is not a de Polignac number, because 2730000257 - 2² = 2730000253 is a prime.

It is not a weakly prime, because it can be changed into another prime (2730000253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365000128 + 1365000129.

It is an arithmetic number, because the mean of its divisors is an integer number (1365000129).

Almost surely, 2^2730000257 is an apocalyptic number.

It is an amenable number.

2730000257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2730000257 is an equidigital number, since it uses as much as digits as its factorization.

2730000257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 2730000257 is about 52249.4043698108. The cubic root of 2730000257 is about 1397.6150307205.

The spelling of 2730000257 in words is "two billion, seven hundred thirty million, two hundred fifty-seven", and thus it is an aban number.