2053729649 has 2 divisors, whose sum is σ = 2053729650. Its totient is φ = 2053729648.

The previous prime is 2053729637. The next prime is 2053729651. The reversal of 2053729649 is 9469273502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1194946624 + 858783025 = 34568^2 + 29305^2 .

It is a cyclic number.

It is not a de Polignac number, because 2053729649 - 2⁸ = 2053729393 is a prime.

It is a Sophie Germain prime.

Together with 2053729651, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2053729679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1026864824 + 1026864825.

It is an arithmetic number, because the mean of its divisors is an integer number (1026864825).

Almost surely, 2^2053729649 is an apocalyptic number.

It is an amenable number.

2053729649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2053729649 is an equidigital number, since it uses as much as digits as its factorization.

2053729649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 47.

The square root of 2053729649 is about 45318.0940574513. The cubic root of 2053729649 is about 1271.1040163325.

The spelling of 2053729649 in words is "two billion, fifty-three million, seven hundred twenty-nine thousand, six hundred forty-nine".