275305045 has 4 divisors (see below), whose sum is σ = 330366060. Its totient is φ = 220244032.

The previous prime is 275305039. The next prime is 275305057. The reversal of 275305045 is 540503572.

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 117375556 + 157929489 = 10834^2 + 12567^2 .

It is a cyclic number.

It is not a de Polignac number, because 275305045 - 2¹⁹ = 274780757 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 275304998 and 275305016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27530500 + ... + 27530509.

It is an arithmetic number, because the mean of its divisors is an integer number (82591515).

Almost surely, 2^275305045 is an apocalyptic number.

It is an amenable number.

275305045 is a deficient number, since it is larger than the sum of its proper divisors (55061015).

275305045 is an equidigital number, since it uses as much as digits as its factorization.

275305045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55061014.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 275305045 is about 16592.3188554222. The cubic root of 275305045 is about 650.5360824035.

The spelling of 275305045 in words is "two hundred seventy-five million, three hundred five thousand, forty-five".