275504645 has 18 divisors (see below), whose sum is σ = 358621074. Its totient is φ = 203093280.

The previous prime is 275504629. The next prime is 275504687. The reversal of 275504645 is 546405572.

It can be written as a sum of positive squares in 3 ways, for example, as 1304164 + 274200481 = 1142^2 + 16559^2 .

It is not a de Polignac number, because 275504645 - 2⁴ = 275504629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 275504599 and 275504608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 482210 + ... + 482780.

It is an arithmetic number, because the mean of its divisors is an integer number (19923393).

Almost surely, 2^275504645 is an apocalyptic number.

It is an amenable number.

275504645 is a deficient number, since it is larger than the sum of its proper divisors (83116429).

275504645 is an frugal number, since it uses more digits than its factorization.

275504645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 38.

The square root of 275504645 is about 16598.3325969809. The cubic root of 275504645 is about 650.6932603373.

The spelling of 275504645 in words is "two hundred seventy-five million, five hundred four thousand, six hundred forty-five".