78008255 has 16 divisors (see below), whose sum is σ = 100994880. Its totient is φ = 57500928.

The previous prime is 78008239. The next prime is 78008263. The reversal of 78008255 is 55280087.

It is a cyclic number.

It is not a de Polignac number, because 78008255 - 2⁴ = 78008239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68531 + ... + 69659.

It is an arithmetic number, because the mean of its divisors is an integer number (6312180).

Almost surely, 2^78008255 is an apocalyptic number.

78008255 is a deficient number, since it is larger than the sum of its proper divisors (22986625).

78008255 is a wasteful number, since it uses less digits than its factorization.

78008255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210.

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 78008255 is about 8832.2282013091. The cubic root of 78008255 is about 427.2809406284.

The spelling of 78008255 in words is "seventy-eight million, eight thousand, two hundred fifty-five".