275320785 has 16 divisors (see below), whose sum is σ = 440974080. Its totient is φ = 146684160.

The previous prime is 275320769. The next prime is 275320789. The reversal of 275320785 is 587023572.

It is not a de Polignac number, because 275320785 - 2⁴ = 275320769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (275320789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6040 + ... + 24230.

It is an arithmetic number, because the mean of its divisors is an integer number (27560880).

Almost surely, 2^275320785 is an apocalyptic number.

It is an amenable number.

275320785 is a deficient number, since it is larger than the sum of its proper divisors (165653295).

275320785 is a wasteful number, since it uses less digits than its factorization.

275320785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19208.

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 275320785 is about 16592.7931645037. The cubic root of 275320785 is about 650.5484798550.

The spelling of 275320785 in words is "two hundred seventy-five million, three hundred twenty thousand, seven hundred eighty-five".