68330455 has 4 divisors (see below), whose sum is σ = 81996552. Its totient is φ = 54664360.

The previous prime is 68330443. The next prime is 68330459. The reversal of 68330455 is 55403386.

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

It is not a de Polignac number, because 68330455 - 2¹³ = 68322263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68330455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68330459) 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, 6833041 + ... + 6833050.

It is an arithmetic number, because the mean of its divisors is an integer number (20499138).

Almost surely, 2^68330455 is an apocalyptic number.

68330455 is a deficient number, since it is larger than the sum of its proper divisors (13666097).

68330455 is a wasteful number, since it uses less digits than its factorization.

68330455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13666096.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 68330455 is about 8266.2237448547. The cubic root of 68330455 is about 408.8256201527.

The spelling of 68330455 in words is "sixty-eight million, three hundred thirty thousand, four hundred fifty-five".