68655085 has 4 divisors (see below), whose sum is σ = 82386108. Its totient is φ = 54924064.

The previous prime is 68655077. The next prime is 68655089. The reversal of 68655085 is 58055686.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29354724 + 39300361 = 5418^2 + 6269^2 .

It is a cyclic number.

It is not a de Polignac number, because 68655085 - 2³ = 68655077 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 (68655089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6865504 + ... + 6865513.

It is an arithmetic number, because the mean of its divisors is an integer number (20596527).

Almost surely, 2^68655085 is an apocalyptic number.

It is an amenable number.

68655085 is a deficient number, since it is larger than the sum of its proper divisors (13731023).

68655085 is a wasteful number, since it uses less digits than its factorization.

68655085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13731022.

The product of its (nonzero) digits is 288000, while the sum is 43.

The square root of 68655085 is about 8285.8364091985. The cubic root of 68655085 is about 409.4720251348.

The spelling of 68655085 in words is "sixty-eight million, six hundred fifty-five thousand, eighty-five".