11778255 has 12 divisors (see below), whose sum is σ = 20415720. Its totient is φ = 6281712.

The previous prime is 11778253. The next prime is 11778289. The reversal of 11778255 is 55287711.

It is not a de Polignac number, because 11778255 - 2¹ = 11778253 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11778251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130825 + ... + 130914.

It is an arithmetic number, because the mean of its divisors is an integer number (1701310).

Almost surely, 2^11778255 is an apocalyptic number.

11778255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11778255 is a deficient number, since it is larger than the sum of its proper divisors (8637465).

11778255 is a wasteful number, since it uses less digits than its factorization.

11778255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261750 (or 261747 counting only the distinct ones).

The product of its digits is 19600, while the sum is 36.

The square root of 11778255 is about 3431.9462408377. The cubic root of 11778255 is about 227.5238794722.

The spelling of 11778255 in words is "eleven million, seven hundred seventy-eight thousand, two hundred fifty-five".