275516860609 has 9 divisors (see below), whose sum is σ = 278325314121. Its totient is φ = 272736481200.

The previous prime is 275516860579. The next prime is 275516860613. The reversal of 275516860609 is 906068615572.

The square root of 275516860609 is 524897.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 73671530625 + 201845329984 = 271425^2 + 449272^2 .

It is not a de Polignac number, because 275516860609 - 2³¹ = 273369376961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 275516860609.

It is not an unprimeable number, because it can be changed into a prime (275516860699) 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 8 ways as a sum of consecutive naturals, for example, 53011999 + ... + 53017195.

Almost surely, 2^275516860609 is an apocalyptic number.

275516860609 is the 524897-th square number.

275516860609 is the 262449-th centered octagonal number.

It is an amenable number.

275516860609 is a deficient number, since it is larger than the sum of its proper divisors (2808453512).

275516860609 is an frugal number, since it uses more digits than its factorization.

275516860609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10596 (or 5298 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 275516860609 in words is "two hundred seventy-five billion, five hundred sixteen million, eight hundred sixty thousand, six hundred nine".