275043445 has 4 divisors (see below), whose sum is σ = 330052140. Its totient is φ = 220034752.

The previous prime is 275043413. The next prime is 275043451. The reversal of 275043445 is 544340572.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 135070884 + 139972561 = 11622^2 + 11831^2 .

It is a cyclic number.

It is not a de Polignac number, because 275043445 - 2⁵ = 275043413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 275043445.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 27504340 + ... + 27504349.

It is an arithmetic number, because the mean of its divisors is an integer number (82513035).

Almost surely, 2^275043445 is an apocalyptic number.

It is an amenable number.

275043445 is a deficient number, since it is larger than the sum of its proper divisors (55008695).

275043445 is an equidigital number, since it uses as much as digits as its factorization.

275043445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55008694.

The product of its (nonzero) digits is 67200, while the sum is 34.

The square root of 275043445 is about 16584.4338160819. The cubic root of 275043445 is about 650.3299665894.

The spelling of 275043445 in words is "two hundred seventy-five million, forty-three thousand, four hundred forty-five".