775248255 has 12 divisors (see below), whose sum is σ = 1343763720. Its totient is φ = 413465712.

The previous prime is 775248233. The next prime is 775248293. The reversal of 775248255 is 552842577.

775248255 is a `hidden beast` number, since 77 + 52 + 482 + 55 = 666.

It is not a de Polignac number, because 775248255 - 2⁶ = 775248191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 17227739 = 775248255 / (7 + 7 + 5 + 2 + 4 + 8 + 2 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 775248255.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8613825 + ... + 8613914.

It is an arithmetic number, because the mean of its divisors is an integer number (111980310).

Almost surely, 2^775248255 is an apocalyptic number.

775248255 is a deficient number, since it is larger than the sum of its proper divisors (568515465).

775248255 is a wasteful number, since it uses less digits than its factorization.

775248255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17227750 (or 17227747 counting only the distinct ones).

The product of its digits is 784000, while the sum is 45.

The square root of 775248255 is about 27843.2802485627. The cubic root of 775248255 is about 918.6433434428.

The spelling of 775248255 in words is "seven hundred seventy-five million, two hundred forty-eight thousand, two hundred fifty-five".