275885497 has 4 divisors (see below), whose sum is σ = 285398820. Its totient is φ = 266372176.

The previous prime is 275885479. The next prime is 275885501. The reversal of 275885497 is 794588572.

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 176464656 + 99420841 = 13284^2 + 9971^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275885497 is a prime.

It is a super-2 number, since 2×275885497² = 152225614909874018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275885447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4756618 + ... + 4756675.

It is an arithmetic number, because the mean of its divisors is an integer number (71349705).

Almost surely, 2^275885497 is an apocalyptic number.

It is an amenable number.

275885497 is a deficient number, since it is larger than the sum of its proper divisors (9513323).

275885497 is an equidigital number, since it uses as much as digits as its factorization.

275885497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9513322.

The product of its digits is 5644800, while the sum is 55.

The square root of 275885497 is about 16609.8012330070. The cubic root of 275885497 is about 650.9929573103.

The spelling of 275885497 in words is "two hundred seventy-five million, eight hundred eighty-five thousand, four hundred ninety-seven".