78788255 has 32 divisors (see below), whose sum is σ = 119099904. Its totient is φ = 48698496.

The previous prime is 78788249. The next prime is 78788257. The reversal of 78788255 is 55288787.

It is not a de Polignac number, because 78788255 - 2⁶ = 78788191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78788257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17552 + ... + 21578.

It is an arithmetic number, because the mean of its divisors is an integer number (3721872).

Almost surely, 2^78788255 is an apocalyptic number.

78788255 is a deficient number, since it is larger than the sum of its proper divisors (40311649).

78788255 is a wasteful number, since it uses less digits than its factorization.

78788255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4095.

The product of its digits is 1254400, while the sum is 50.

The square root of 78788255 is about 8876.2748380162. The cubic root of 78788255 is about 428.7003393425.

The spelling of 78788255 in words is "seventy-eight million, seven hundred eighty-eight thousand, two hundred fifty-five".