53791649 has 2 divisors, whose sum is σ = 53791650. Its totient is φ = 53791648.

The previous prime is 53791643. The next prime is 53791669. The reversal of 53791649 is 94619735.

53791649 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., 33721249 + 20070400 = 5807^2 + 4480^2 .

It is a cyclic number.

It is not a de Polignac number, because 53791649 - 2²⁰ = 52743073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53791643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26895824 + 26895825.

It is an arithmetic number, because the mean of its divisors is an integer number (26895825).

Almost surely, 2^53791649 is an apocalyptic number.

It is an amenable number.

53791649 is a deficient number, since it is larger than the sum of its proper divisors (1).

53791649 is an equidigital number, since it uses as much as digits as its factorization.

53791649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 44.

The square root of 53791649 is about 7334.2790375060. The cubic root of 53791649 is about 377.4895665435.

The spelling of 53791649 in words is "fifty-three million, seven hundred ninety-one thousand, six hundred forty-nine".