68355205 has 4 divisors (see below), whose sum is σ = 82026252. Its totient is φ = 54684160.

The previous prime is 68355187. The next prime is 68355227. The reversal of 68355205 is 50255386.

It is a happy number.

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 11819844 + 56535361 = 3438^2 + 7519^2 .

It is not a de Polignac number, because 68355205 - 2⁵ = 68355173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6835516 + ... + 6835525.

It is an arithmetic number, because the mean of its divisors is an integer number (20506563).

Almost surely, 2^68355205 is an apocalyptic number.

It is an amenable number.

68355205 is a deficient number, since it is larger than the sum of its proper divisors (13671047).

68355205 is a wasteful number, since it uses less digits than its factorization.

68355205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13671046.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 68355205 is about 8267.7206653346. The cubic root of 68355205 is about 408.8749744885.

The spelling of 68355205 in words is "sixty-eight million, three hundred fifty-five thousand, two hundred five".