68210755 has 32 divisors (see below), whose sum is σ = 89631360. Its totient is φ = 49674240.

The previous prime is 68210731. The next prime is 68210759. The reversal of 68210755 is 55701286.

It is not a de Polignac number, because 68210755 - 2¹⁵ = 68177987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68210755.

It is not an unprimeable number, because it can be changed into a prime (68210759) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 376765 + ... + 376945.

It is an arithmetic number, because the mean of its divisors is an integer number (2800980).

Almost surely, 2^68210755 is an apocalyptic number.

68210755 is a deficient number, since it is larger than the sum of its proper divisors (21420605).

68210755 is a wasteful number, since it uses less digits than its factorization.

68210755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 68210755 is about 8258.9802639309. The cubic root of 68210755 is about 408.5867562870.

The spelling of 68210755 in words is "sixty-eight million, two hundred ten thousand, seven hundred fifty-five".