78965255 has 8 divisors (see below), whose sum is σ = 100332432. Its totient is φ = 59456128.

The previous prime is 78965239. The next prime is 78965261. The reversal of 78965255 is 55256987.

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 78965255 - 2⁴ = 78965239 is a prime.

It is a super-2 number, since 2×78965255² = 12471022994430050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 464417 + ... + 464586.

It is an arithmetic number, because the mean of its divisors is an integer number (12541554).

Almost surely, 2^78965255 is an apocalyptic number.

78965255 is a deficient number, since it is larger than the sum of its proper divisors (21367177).

78965255 is a wasteful number, since it uses less digits than its factorization.

78965255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929025.

The product of its digits is 756000, while the sum is 47.

The square root of 78965255 is about 8886.2396434037. The cubic root of 78965255 is about 429.0211283092.

The spelling of 78965255 in words is "seventy-eight million, nine hundred sixty-five thousand, two hundred fifty-five".