68310522 has 48 divisors (see below), whose sum is σ = 179105472. Its totient is φ = 18368640.

The previous prime is 68310521. The next prime is 68310523. The reversal of 68310522 is 22501386.

It is an interprime number because it is at equal distance from previous prime (68310521) and next prime (68310523).

It is not an unprimeable number, because it can be changed into a prime (68310521) 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 in 23 ways as a sum of consecutive naturals, for example, 13804 + ... + 18087.

It is an arithmetic number, because the mean of its divisors is an integer number (3731364).

Almost surely, 2^68310522 is an apocalyptic number.

68310522 is an abundant number, since it is smaller than the sum of its proper divisors (110794950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68310522 is a wasteful number, since it uses less digits than its factorization.

68310522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31923 (or 31920 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 68310522 is about 8265.0179673126. The cubic root of 68310522 is about 408.7858628018.

The spelling of 68310522 in words is "sixty-eight million, three hundred ten thousand, five hundred twenty-two".