68257725 has 12 divisors (see below), whose sum is σ = 112852896. Its totient is φ = 36404080.

The previous prime is 68257723. The next prime is 68257729. The reversal of 68257725 is 52775286.

It is not a de Polignac number, because 68257725 - 2¹ = 68257723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68257723) 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 11 ways as a sum of consecutive naturals, for example, 454977 + ... + 455126.

It is an arithmetic number, because the mean of its divisors is an integer number (9404408).

Almost surely, 2^68257725 is an apocalyptic number.

It is an amenable number.

68257725 is a deficient number, since it is larger than the sum of its proper divisors (44595171).

68257725 is a wasteful number, since it uses less digits than its factorization.

68257725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910116 (or 910111 counting only the distinct ones).

The product of its digits is 235200, while the sum is 42.

The square root of 68257725 is about 8261.8233459691. The cubic root of 68257725 is about 408.6805191966.

The spelling of 68257725 in words is "sixty-eight million, two hundred fifty-seven thousand, seven hundred twenty-five".