649893053 has 2 divisors, whose sum is σ = 649893054. Its totient is φ = 649893052.

The previous prime is 649893047. The next prime is 649893059. The reversal of 649893053 is 350398946.

It is a balanced prime because it is at equal distance from previous prime (649893047) and next prime (649893059).

It can be written as a sum of positive squares in only one way, i.e., 649893049 + 4 = 25493^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 649893053 - 2¹² = 649888957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 649892989 and 649893007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (649893059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324946526 + 324946527.

It is an arithmetic number, because the mean of its divisors is an integer number (324946527).

Almost surely, 2^649893053 is an apocalyptic number.

It is an amenable number.

649893053 is a deficient number, since it is larger than the sum of its proper divisors (1).

649893053 is an equidigital number, since it uses as much as digits as its factorization.

649893053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 649893053 is about 25493.0000784529. Note that the first 4 decimals coincide. The cubic root of 649893053 is about 866.1915941845.

The spelling of 649893053 in words is "six hundred forty-nine million, eight hundred ninety-three thousand, fifty-three".