68719255 has 16 divisors (see below), whose sum is σ = 90764064. Its totient is φ = 49530880.

The previous prime is 68719229. The next prime is 68719271. The reversal of 68719255 is 55291786.

It is not a de Polignac number, because 68719255 - 2⁷ = 68719127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 687 + ... + 11743.

It is an arithmetic number, because the mean of its divisors is an integer number (5672754).

Almost surely, 2^68719255 is an apocalyptic number.

68719255 is a deficient number, since it is larger than the sum of its proper divisors (22044809).

68719255 is a wasteful number, since it uses less digits than its factorization.

68719255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11186.

The product of its digits is 151200, while the sum is 43.

The square root of 68719255 is about 8289.7077753079. The cubic root of 68719255 is about 409.5995594497.

The spelling of 68719255 in words is "sixty-eight million, seven hundred nineteen thousand, two hundred fifty-five".