275561288 has 12 divisors (see below), whose sum is σ = 516765465. Its totient is φ = 137757168.

The previous prime is 275561281. The next prime is 275561291. The reversal of 275561288 is 882165572.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 218980804 + 56580484 = 14798^2 + 7522^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=11738.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275561281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 44018 + ... + 49886.

Almost surely, 2^275561288 is an apocalyptic number.

It is an amenable number.

275561288 is a deficient number, since it is larger than the sum of its proper divisors (241204177).

275561288 is an frugal number, since it uses more digits than its factorization.

275561288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11744 (or 5871 counting only the distinct ones).

The product of its digits is 268800, while the sum is 44.

The square root of 275561288 is about 16600.0387951354. The cubic root of 275561288 is about 650.7378508652.

The spelling of 275561288 in words is "two hundred seventy-five million, five hundred sixty-one thousand, two hundred eighty-eight".