275449057 has 8 divisors (see below), whose sum is σ = 299696936. Its totient is φ = 251638272.

The previous prime is 275449039. The next prime is 275449067. The reversal of 275449057 is 750944572.

It can be written as a sum of positive squares in 4 ways, for example, as 28047616 + 247401441 = 5296^2 + 15729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 275449057 - 2¹⁵ = 275416289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275449067) 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 7 ways as a sum of consecutive naturals, for example, 107958 + ... + 110479.

It is an arithmetic number, because the mean of its divisors is an integer number (37462117).

Almost surely, 2^275449057 is an apocalyptic number.

It is an amenable number.

275449057 is a deficient number, since it is larger than the sum of its proper divisors (24247879).

275449057 is a wasteful number, since it uses less digits than its factorization.

275449057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218547.

The product of its (nonzero) digits is 352800, while the sum is 43.

The square root of 275449057 is about 16596.6580069603. The cubic root of 275449057 is about 650.6494943844.

The spelling of 275449057 in words is "two hundred seventy-five million, four hundred forty-nine thousand, fifty-seven".