275642227 has 4 divisors (see below), whose sum is σ = 315019696. Its totient is φ = 236264760.

The previous prime is 275642207. The next prime is 275642249. The reversal of 275642227 is 722246572.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 275642227 - 2¹¹ = 275640179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275642207) 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, 19688724 + ... + 19688737.

It is an arithmetic number, because the mean of its divisors is an integer number (78754924).

Almost surely, 2^275642227 is an apocalyptic number.

275642227 is a deficient number, since it is larger than the sum of its proper divisors (39377469).

275642227 is an equidigital number, since it uses as much as digits as its factorization.

275642227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39377468.

The product of its digits is 94080, while the sum is 37.

The square root of 275642227 is about 16602.4765321322. The cubic root of 275642227 is about 650.8015570983.

Adding to 275642227 its reverse (722246572), we get a palindrome (997888799).

It can be divided in two parts, 27564 and 2227, that added together give a cube (29791 = 31³).

The spelling of 275642227 in words is "two hundred seventy-five million, six hundred forty-two thousand, two hundred twenty-seven".