68528263 has 2 divisors, whose sum is σ = 68528264. Its totient is φ = 68528262.

The previous prime is 68528227. The next prime is 68528333. The reversal of 68528263 is 36282586.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68528263 is a prime.

It is a super-2 number, since 2×68528263² = 9392245659594338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68028263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34264131 + 34264132.

It is an arithmetic number, because the mean of its divisors is an integer number (34264132).

Almost surely, 2^68528263 is an apocalyptic number.

68528263 is a deficient number, since it is larger than the sum of its proper divisors (1).

68528263 is an equidigital number, since it uses as much as digits as its factorization.

68528263 is an odious number, because the sum of its binary digits is odd.

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

The square root of 68528263 is about 8278.1799328113. The cubic root of 68528263 is about 409.2197395264.

The spelling of 68528263 in words is "sixty-eight million, five hundred twenty-eight thousand, two hundred sixty-three".