68305529 has 2 divisors, whose sum is σ = 68305530. Its totient is φ = 68305528.

The previous prime is 68305511. The next prime is 68305547. The reversal of 68305529 is 92550386.

It is a balanced prime because it is at equal distance from previous prime (68305511) and next prime (68305547).

It can be written as a sum of positive squares in only one way, i.e., 41628304 + 26677225 = 6452^2 + 5165^2 .

It is a cyclic number.

It is not a de Polignac number, because 68305529 - 2¹² = 68301433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68305492 and 68305501.

It is not a weakly prime, because it can be changed into another prime (68305579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34152764 + 34152765.

It is an arithmetic number, because the mean of its divisors is an integer number (34152765).

Almost surely, 2^68305529 is an apocalyptic number.

It is an amenable number.

68305529 is a deficient number, since it is larger than the sum of its proper divisors (1).

68305529 is an equidigital number, since it uses as much as digits as its factorization.

68305529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 68305529 is about 8264.7159055832. The cubic root of 68305529 is about 408.7759028060.

The spelling of 68305529 in words is "sixty-eight million, three hundred five thousand, five hundred twenty-nine".