68065550 has 48 divisors (see below), whose sum is σ = 146053152. Its totient is φ = 23116800.

The previous prime is 68065549. The next prime is 68065567. The reversal of 68065550 is 5556086.

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

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 68065550.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 38690 + ... + 40410.

It is an arithmetic number, because the mean of its divisors is an integer number (3042774).

Almost surely, 2^68065550 is an apocalyptic number.

68065550 is an abundant number, since it is smaller than the sum of its proper divisors (77987602).

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

68065550 is a wasteful number, since it uses less digits than its factorization.

68065550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853 (or 1848 counting only the distinct ones).

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

The square root of 68065550 is about 8250.1848464140. The cubic root of 68065550 is about 408.2966212540.

The spelling of 68065550 in words is "sixty-eight million, sixty-five thousand, five hundred fifty".