68535455 has 4 divisors (see below), whose sum is σ = 82242552. Its totient is φ = 54828360.

The previous prime is 68535437. The next prime is 68535457. The reversal of 68535455 is 55453586.

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

It is not a de Polignac number, because 68535455 - 2¹⁴ = 68519071 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 (68535457) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6853541 + ... + 6853550.

It is an arithmetic number, because the mean of its divisors is an integer number (20560638).

Almost surely, 2^68535455 is an apocalyptic number.

68535455 is a deficient number, since it is larger than the sum of its proper divisors (13707097).

68535455 is a wasteful number, since it uses less digits than its factorization.

68535455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13707096.

The product of its digits is 360000, while the sum is 41.

The square root of 68535455 is about 8278.6143164179. The cubic root of 68535455 is about 409.2340548141.

The spelling of 68535455 in words is "sixty-eight million, five hundred thirty-five thousand, four hundred fifty-five".