275712049 has 4 divisors (see below), whose sum is σ = 283163764. Its totient is φ = 268260336.

The previous prime is 275712043. The next prime is 275712067. The reversal of 275712049 is 940217572.

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 240095025 + 35617024 = 15495^2 + 5968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275712049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 7451677 = 275712049 / (2 + 7 + 5 + 7 + 1 + 2 + 0 + 4 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 275711999 and 275712017.

It is not an unprimeable number, because it can be changed into a prime (275712043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3725802 + ... + 3725875.

It is an arithmetic number, because the mean of its divisors is an integer number (70790941).

Almost surely, 2^275712049 is an apocalyptic number.

It is an amenable number.

275712049 is a deficient number, since it is larger than the sum of its proper divisors (7451715).

275712049 is an equidigital number, since it uses as much as digits as its factorization.

275712049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7451714.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 275712049 is about 16604.5791575698. The cubic root of 275712049 is about 650.8565032394.

The spelling of 275712049 in words is "two hundred seventy-five million, seven hundred twelve thousand, forty-nine".