68225665 has 8 divisors (see below), whose sum is σ = 81955008. Its totient is φ = 54524400.

The previous prime is 68225639. The next prime is 68225683. The reversal of 68225665 is 56652286.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68225665 - 2⁷ = 68225537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1237 + ... + 11746.

It is an arithmetic number, because the mean of its divisors is an integer number (10244376).

Almost surely, 2^68225665 is an apocalyptic number.

It is an amenable number.

68225665 is a deficient number, since it is larger than the sum of its proper divisors (13729343).

68225665 is a wasteful number, since it uses less digits than its factorization.

68225665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14039.

The product of its digits is 172800, while the sum is 40.

The square root of 68225665 is about 8259.8828684189. The cubic root of 68225665 is about 408.6165247339.

The spelling of 68225665 in words is "sixty-eight million, two hundred twenty-five thousand, six hundred sixty-five".