275266385 has 4 divisors (see below), whose sum is σ = 330319668. Its totient is φ = 220213104.

The previous prime is 275266307. The next prime is 275266393. The reversal of 275266385 is 583662572.

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 162205696 + 113060689 = 12736^2 + 10633^2 .

It is a cyclic number.

It is not a de Polignac number, because 275266385 - 2¹² = 275262289 is a prime.

It is a Duffinian 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, 27526634 + ... + 27526643.

It is an arithmetic number, because the mean of its divisors is an integer number (82579917).

Almost surely, 2^275266385 is an apocalyptic number.

It is an amenable number.

275266385 is a deficient number, since it is larger than the sum of its proper divisors (55053283).

275266385 is an equidigital number, since it uses as much as digits as its factorization.

275266385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55053282.

The product of its digits is 604800, while the sum is 44.

The square root of 275266385 is about 16591.1538176222. The cubic root of 275266385 is about 650.5056302406.

The spelling of 275266385 in words is "two hundred seventy-five million, two hundred sixty-six thousand, three hundred eighty-five".