275485965 has 16 divisors (see below), whose sum is σ = 441179136. Its totient is φ = 146792000.

The previous prime is 275485961. The next prime is 275486009. The reversal of 275485965 is 569584572.

It is not a de Polignac number, because 275485965 - 2² = 275485961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275485961) 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, 9940 + ... + 25490.

It is an arithmetic number, because the mean of its divisors is an integer number (27573696).

Almost surely, 2^275485965 is an apocalyptic number.

It is an amenable number.

275485965 is a deficient number, since it is larger than the sum of its proper divisors (165693171).

275485965 is a wasteful number, since it uses less digits than its factorization.

275485965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16740.

The product of its digits is 3024000, while the sum is 51.

The square root of 275485965 is about 16597.7698803183. The cubic root of 275485965 is about 650.6785537192.

The spelling of 275485965 in words is "two hundred seventy-five million, four hundred eighty-five thousand, nine hundred sixty-five".