68558755 has 16 divisors (see below), whose sum is σ = 86389920. Its totient is φ = 52157952.

The previous prime is 68558741. The next prime is 68558761. The reversal of 68558755 is 55785586.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 68558755 - 2⁵ = 68558723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68558699 and 68558708.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6187 + ... + 13243.

It is an arithmetic number, because the mean of its divisors is an integer number (5399370).

Almost surely, 2^68558755 is an apocalyptic number.

68558755 is a deficient number, since it is larger than the sum of its proper divisors (17831165).

68558755 is a wasteful number, since it uses less digits than its factorization.

68558755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7158.

The product of its digits is 1680000, while the sum is 49.

The square root of 68558755 is about 8280.0214371703. The cubic root of 68558755 is about 409.2804253296.

The spelling of 68558755 in words is "sixty-eight million, five hundred fifty-eight thousand, seven hundred fifty-five".