68525757 has 24 divisors (see below), whose sum is σ = 104080704. Its totient is φ = 45046368.

The previous prime is 68525741. The next prime is 68525783. The reversal of 68525757 is 75752586.

It is not a de Polignac number, because 68525757 - 2⁴ = 68525741 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68525557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15808 + ... + 19670.

It is an arithmetic number, because the mean of its divisors is an integer number (4336696).

Almost surely, 2^68525757 is an apocalyptic number.

It is an amenable number.

68525757 is a deficient number, since it is larger than the sum of its proper divisors (35554947).

68525757 is an equidigital number, since it uses as much as digits as its factorization.

68525757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3951 (or 3939 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 68525757 is about 8278.0285696535. The cubic root of 68525757 is about 409.2147512333.

It can be divided in two parts, 68 and 525757, that added together give a triangular number (525825 = T₁₀₂₅).

The spelling of 68525757 in words is "sixty-eight million, five hundred twenty-five thousand, seven hundred fifty-seven".