68280455 has 8 divisors (see below), whose sum is σ = 82428192. Its totient is φ = 54296608.

The previous prime is 68280439. The next prime is 68280463. The reversal of 68280455 is 55408286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68280455 - 2⁴ = 68280439 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 7 ways as a sum of consecutive naturals, for example, 40052 + ... + 41721.

It is an arithmetic number, because the mean of its divisors is an integer number (10303524).

Almost surely, 2^68280455 is an apocalyptic number.

68280455 is a deficient number, since it is larger than the sum of its proper divisors (14147737).

68280455 is a wasteful number, since it uses less digits than its factorization.

68280455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81945.

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 68280455 is about 8263.1988358020. The cubic root of 68280455 is about 408.7258780542.

The spelling of 68280455 in words is "sixty-eight million, two hundred eighty thousand, four hundred fifty-five".