275749385 has 16 divisors (see below), whose sum is σ = 335149056. Its totient is φ = 217784448.

The previous prime is 275749363. The next prime is 275749391. The reversal of 275749385 is 583947572.

It is a cyclic number.

It is not a de Polignac number, because 275749385 - 2¹² = 275745289 is a prime.

It is a super-3 number, since 3×275749385³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 143189 + ... + 145101.

It is an arithmetic number, because the mean of its divisors is an integer number (20946816).

Almost surely, 2^275749385 is an apocalyptic number.

It is an amenable number.

275749385 is a deficient number, since it is larger than the sum of its proper divisors (59399671).

275749385 is a wasteful number, since it uses less digits than its factorization.

275749385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272.

The product of its digits is 2116800, while the sum is 50.

The square root of 275749385 is about 16605.7033876918. The cubic root of 275749385 is about 650.8858808475.

The spelling of 275749385 in words is "two hundred seventy-five million, seven hundred forty-nine thousand, three hundred eighty-five".