775000056 has 32 divisors (see below), whose sum is σ = 1938182400. Its totient is φ = 258242400.

The previous prime is 775000049. The next prime is 775000069. The reversal of 775000056 is 650000577.

It is a junction number, because it is equal to n+sod(n) for n = 774999987 and 775000032.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129531 + ... + 135381.

It is an arithmetic number, because the mean of its divisors is an integer number (60568200).

Almost surely, 2^775000056 is an apocalyptic number.

It is an amenable number.

775000056 is an abundant number, since it is smaller than the sum of its proper divisors (1163182344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

775000056 is a wasteful number, since it uses less digits than its factorization.

775000056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11379 (or 11375 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 775000056 is about 27838.8228199398. The cubic root of 775000056 is about 918.5452971312.

The spelling of 775000056 in words is "seven hundred seventy-five million, fifty-six", and thus it is an aban number.