775255564 has 24 divisors (see below), whose sum is σ = 1402869888. Its totient is φ = 374478720.

The previous prime is 775255543. The next prime is 775255601. The reversal of 775255564 is 465552577.

775255564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71442 + ... + 81574.

It is an arithmetic number, because the mean of its divisors is an integer number (58452912).

Almost surely, 2^775255564 is an apocalyptic number.

It is an amenable number.

775255564 is a deficient number, since it is larger than the sum of its proper divisors (627614324).

775255564 is a wasteful number, since it uses less digits than its factorization.

775255564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10785 (or 10783 counting only the distinct ones).

The product of its digits is 1470000, while the sum is 46.

The square root of 775255564 is about 27843.4115007483. The cubic root of 775255564 is about 918.6462304075.

The spelling of 775255564 in words is "seven hundred seventy-five million, two hundred fifty-five thousand, five hundred sixty-four".