275250005 has 4 divisors (see below), whose sum is σ = 330300012. Its totient is φ = 220200000.

The previous prime is 275249987. The next prime is 275250007. The reversal of 275250005 is 500052572.

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 72216004 + 203034001 = 8498^2 + 14249^2 .

It is not a de Polignac number, because 275250005 - 2¹² = 275245909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275250007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27524996 + ... + 27525005.

It is an arithmetic number, because the mean of its divisors is an integer number (82575003).

Almost surely, 2^275250005 is an apocalyptic number.

It is an amenable number.

275250005 is a deficient number, since it is larger than the sum of its proper divisors (55050007).

275250005 is an equidigital number, since it uses as much as digits as its factorization.

275250005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55050006.

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 275250005 is about 16590.6601737243. The cubic root of 275250005 is about 650.4927269898.

The spelling of 275250005 in words is "two hundred seventy-five million, two hundred fifty thousand, five".