68159225 has 12 divisors (see below), whose sum is σ = 85589760. Its totient is φ = 53835600.

The previous prime is 68159209. The next prime is 68159233. The reversal of 68159225 is 52295186.

It is not a de Polignac number, because 68159225 - 2⁴ = 68159209 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15281 + ... + 19230.

It is an arithmetic number, because the mean of its divisors is an integer number (7132480).

Almost surely, 2^68159225 is an apocalyptic number.

It is an amenable number.

68159225 is a deficient number, since it is larger than the sum of its proper divisors (17430535).

68159225 is a wasteful number, since it uses less digits than its factorization.

68159225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34600 (or 34595 counting only the distinct ones).

The product of its digits is 43200, while the sum is 38.

The square root of 68159225 is about 8255.8600399958. The cubic root of 68159225 is about 408.4838410421.

The spelling of 68159225 in words is "sixty-eight million, one hundred fifty-nine thousand, two hundred twenty-five".