68056505 has 32 divisors (see below), whose sum is σ = 93374208. Its totient is φ = 47174400.

The previous prime is 68056489. The next prime is 68056507. The reversal of 68056505 is 50565086.

It is not a de Polignac number, because 68056505 - 2⁴ = 68056489 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68056507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107540 + ... + 108170.

It is an arithmetic number, because the mean of its divisors is an integer number (2917944).

Almost surely, 2^68056505 is an apocalyptic number.

It is an amenable number.

68056505 is a deficient number, since it is larger than the sum of its proper divisors (25317703).

68056505 is a wasteful number, since it uses less digits than its factorization.

68056505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 68056505 is about 8249.6366586656. The cubic root of 68056505 is about 408.2785347353.

The spelling of 68056505 in words is "sixty-eight million, fifty-six thousand, five hundred five".