2750540281 has 2 divisors, whose sum is σ = 2750540282. Its totient is φ = 2750540280.

The previous prime is 2750540269. The next prime is 2750540323. The reversal of 2750540281 is 1820450572.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2617345600 + 133194681 = 51160^2 + 11541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2750540281 is a prime.

It is a super-2 number, since 2×2750540281² = 15130943674807117922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2750540231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1375270140 + 1375270141.

It is an arithmetic number, because the mean of its divisors is an integer number (1375270141).

Almost surely, 2^2750540281 is an apocalyptic number.

It is an amenable number.

2750540281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2750540281 is an equidigital number, since it uses as much as digits as its factorization.

2750540281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 2750540281 is about 52445.5935327268. The cubic root of 2750540281 is about 1401.1114101447. Note that the first 3 decimals are identical.

The spelling of 2750540281 in words is "two billion, seven hundred fifty million, five hundred forty thousand, two hundred eighty-one".