68005573 has 4 divisors (see below), whose sum is σ = 68412960. Its totient is φ = 67598188.

The previous prime is 68005571. The next prime is 68005631. The reversal of 68005573 is 37550086.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68005573 - 2¹ = 68005571 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68005571) 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, 203443 + ... + 203776.

It is an arithmetic number, because the mean of its divisors is an integer number (17103240).

Almost surely, 2^68005573 is an apocalyptic number.

It is an amenable number.

68005573 is a deficient number, since it is larger than the sum of its proper divisors (407387).

68005573 is a wasteful number, since it uses less digits than its factorization.

68005573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407386.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 68005573 is about 8246.5491570717. The cubic root of 68005573 is about 408.1766604086.

The spelling of 68005573 in words is "sixty-eight million, five thousand, five hundred seventy-three".