68648053 has 2 divisors, whose sum is σ = 68648054. Its totient is φ = 68648052.

The previous prime is 68648033. The next prime is 68648071. The reversal of 68648053 is 35084686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52664049 + 15984004 = 7257^2 + 3998^2 .

It is a cyclic number.

It is not a de Polignac number, because 68648053 - 2⁹ = 68647541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68647997 and 68648015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68648003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34324026 + 34324027.

It is an arithmetic number, because the mean of its divisors is an integer number (34324027).

Almost surely, 2^68648053 is an apocalyptic number.

It is an amenable number.

68648053 is a deficient number, since it is larger than the sum of its proper divisors (1).

68648053 is an equidigital number, since it uses as much as digits as its factorization.

68648053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 68648053 is about 8285.4120597590. The cubic root of 68648053 is about 409.4580445943.

The spelling of 68648053 in words is "sixty-eight million, six hundred forty-eight thousand, fifty-three".