678075055 has 8 divisors (see below), whose sum is σ = 929931552. Its totient is φ = 464965728.

The previous prime is 678075053. The next prime is 678075067. The reversal of 678075055 is 550570876.

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 678075055 - 2¹ = 678075053 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 (678075053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9686752 + ... + 9686821.

It is an arithmetic number, because the mean of its divisors is an integer number (116241444).

Almost surely, 2^678075055 is an apocalyptic number.

678075055 is a deficient number, since it is larger than the sum of its proper divisors (251856497).

678075055 is a wasteful number, since it uses less digits than its factorization.

678075055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19373585.

The product of its (nonzero) digits is 294000, while the sum is 43.

The square root of 678075055 is about 26039.8743276537. The cubic root of 678075055 is about 878.5353800997.

The spelling of 678075055 in words is "six hundred seventy-eight million, seventy-five thousand, fifty-five".