275664506 has 16 divisors (see below), whose sum is σ = 450311400. Its totient is φ = 125799168.

The previous prime is 275664481. The next prime is 275664511. The reversal of 275664506 is 605466572.

It can be written as a sum of positive squares in 4 ways, for example, as 61481281 + 214183225 = 7841^2 + 14635^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57251 + ... + 61878.

Almost surely, 2^275664506 is an apocalyptic number.

275664506 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

275664506 is a deficient number, since it is larger than the sum of its proper divisors (174646894).

275664506 is a wasteful number, since it uses less digits than its factorization.

275664506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119233.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 275664506 is about 16603.1474726932. The cubic root of 275664506 is about 650.8190904754.

The spelling of 275664506 in words is "two hundred seventy-five million, six hundred sixty-four thousand, five hundred six".