68517528 has 32 divisors (see below), whose sum is σ = 171946800. Its totient is φ = 22752128.

The previous prime is 68517521. The next prime is 68517563. The reversal of 68517528 is 82571586.

It is a self number, because there is not a number n which added to its sum of digits gives 68517528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68517521) 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 7 ways as a sum of consecutive naturals, for example, 1150 + ... + 11762.

Almost surely, 2^68517528 is an apocalyptic number.

It is an amenable number.

68517528 is an abundant number, since it is smaller than the sum of its proper divisors (103429272).

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

68517528 is a wasteful number, since it uses less digits than its factorization.

68517528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10891 (or 10887 counting only the distinct ones).

The product of its digits is 134400, while the sum is 42.

The square root of 68517528 is about 8277.5315160983. The cubic root of 68517528 is about 409.1983702250.

The spelling of 68517528 in words is "sixty-eight million, five hundred seventeen thousand, five hundred twenty-eight".