275485312 has 16 divisors (see below), whose sum is σ = 548818650. Its totient is φ = 137742592.

The previous prime is 275485279. The next prime is 275485319. The reversal of 275485312 is 213584572.

It can be written as a sum of positive squares in only one way, i.e., 179131456 + 96353856 = 13384^2 + 9816^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (275485319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075987 + ... + 1076242.

Almost surely, 2^275485312 is an apocalyptic number.

It is an amenable number.

275485312 is a deficient number, since it is larger than the sum of its proper divisors (273333338).

275485312 is an equidigital number, since it uses as much as digits as its factorization.

275485312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152243 (or 2152231 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The square root of 275485312 is about 16597.7502089892. The cubic root of 275485312 is about 650.6780396053.

The spelling of 275485312 in words is "two hundred seventy-five million, four hundred eighty-five thousand, three hundred twelve".