275666553 has 12 divisors (see below), whose sum is σ = 402660180. Its totient is φ = 181712256.

The previous prime is 275666527. The next prime is 275666563. The reversal of 275666553 is 355666572.

It can be written as a sum of positive squares in 2 ways, for example, as 98962704 + 176703849 = 9948^2 + 13293^2 .

It is not a de Polignac number, because 275666553 - 2¹⁰ = 275665529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 275666499 and 275666508.

It is not an unprimeable number, because it can be changed into a prime (275666563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171276 + ... + 172877.

It is an arithmetic number, because the mean of its divisors is an integer number (33555015).

Almost surely, 2^275666553 is an apocalyptic number.

It is an amenable number.

275666553 is a deficient number, since it is larger than the sum of its proper divisors (126993627).

275666553 is a wasteful number, since it uses less digits than its factorization.

275666553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344248 (or 344245 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 45.

The square root of 275666553 is about 16603.2091175170. The cubic root of 275666553 is about 650.8207013990.

The spelling of 275666553 in words is "two hundred seventy-five million, six hundred sixty-six thousand, five hundred fifty-three".