68000056 has 8 divisors (see below), whose sum is σ = 127500120. Its totient is φ = 34000024.

The previous prime is 68000047. The next prime is 68000077. The reversal of 68000056 is 65000086.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 4249996 + ... + 4250011.

It is an arithmetic number, because the mean of its divisors is an integer number (15937515).

Almost surely, 2^68000056 is an apocalyptic number.

It is an amenable number.

68000056 is a deficient number, since it is larger than the sum of its proper divisors (59500064).

68000056 is a wasteful number, since it uses less digits than its factorization.

68000056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8500013 (or 8500009 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 68000056 is about 8246.2146467334. The cubic root of 68000056 is about 408.1656222371.

The spelling of 68000056 in words is "sixty-eight million, fifty-six", and thus it is an aban number and an uban number.