68912522 has 24 divisors (see below), whose sum is σ = 121611780. Its totient is φ = 29198400.

The previous prime is 68912521. The next prime is 68912527. The reversal of 68912522 is 22521986.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68574961 + 337561 = 8281^2 + 581^2 .

It is not an unprimeable number, because it can be changed into a prime (68912521) 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 in 11 ways as a sum of consecutive naturals, for example, 4772 + ... + 12672.

Almost surely, 2^68912522 is an apocalyptic number.

68912522 is a deficient number, since it is larger than the sum of its proper divisors (52699258).

68912522 is a wasteful number, since it uses less digits than its factorization.

68912522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8006 (or 7999 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 68912522 is about 8301.3566361168. The cubic root of 68912522 is about 409.9831878889.

The spelling of 68912522 in words is "sixty-eight million, nine hundred twelve thousand, five hundred twenty-two".