775275807550 has 12 divisors (see below), whose sum is σ = 1442013002136. Its totient is φ = 310110323000.

The previous prime is 775275807547. The next prime is 775275807571. The reversal of 775275807550 is 55708572577.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7752758026 + ... + 7752758125.

It is an arithmetic number, because the mean of its divisors is an integer number (120167750178).

Almost surely, 2^775275807550 is an apocalyptic number.

775275807550 is a deficient number, since it is larger than the sum of its proper divisors (666737194586).

775275807550 is a wasteful number, since it uses less digits than its factorization.

775275807550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15505516163 (or 15505516158 counting only the distinct ones).

The product of its (nonzero) digits is 24010000, while the sum is 58.

The spelling of 775275807550 in words is "seven hundred seventy-five billion, two hundred seventy-five million, eight hundred seven thousand, five hundred fifty".