68250043 has 4 divisors (see below), whose sum is σ = 68925888. Its totient is φ = 67574200.

The previous prime is 68250031. The next prime is 68250097. The reversal of 68250043 is 34005286.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68250043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68249993 and 68250020.

It is not an unprimeable number, because it can be changed into a prime (68253043) 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 3 ways as a sum of consecutive naturals, for example, 337771 + ... + 337972.

It is an arithmetic number, because the mean of its divisors is an integer number (17231472).

Almost surely, 2^68250043 is an apocalyptic number.

68250043 is a deficient number, since it is larger than the sum of its proper divisors (675845).

68250043 is a wasteful number, since it uses less digits than its factorization.

68250043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675844.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 68250043 is about 8261.3584234071. The cubic root of 68250043 is about 408.6651871028.

The spelling of 68250043 in words is "sixty-eight million, two hundred fifty thousand, forty-three".