68504053 has 2 divisors, whose sum is σ = 68504054. Its totient is φ = 68504052.

The previous prime is 68504047. The next prime is 68504069. The reversal of 68504053 is 35040586.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66961489 + 1542564 = 8183^2 + 1242^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68504053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68507053) 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, 34252026 + 34252027.

It is an arithmetic number, because the mean of its divisors is an integer number (34252027).

Almost surely, 2^68504053 is an apocalyptic number.

It is an amenable number.

68504053 is a deficient number, since it is larger than the sum of its proper divisors (1).

68504053 is an equidigital number, since it uses as much as digits as its factorization.

68504053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 68504053 is about 8276.7175256861. The cubic root of 68504053 is about 409.1715434664.

The spelling of 68504053 in words is "sixty-eight million, five hundred four thousand, fifty-three".