275664505 has 8 divisors (see below), whose sum is σ = 331388352. Its totient is φ = 220137648.

The previous prime is 275664481. The next prime is 275664511. The reversal of 275664505 is 505466572.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 275664505 - 2⁷ = 275664377 is a prime.

It is a Duffinian 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, 46149 + ... + 51778.

It is an arithmetic number, because the mean of its divisors is an integer number (41423544).

Almost surely, 2^275664505 is an apocalyptic number.

It is an amenable number.

275664505 is a deficient number, since it is larger than the sum of its proper divisors (55723847).

275664505 is an equidigital number, since it uses as much as digits as its factorization.

275664505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98495.

The product of its (nonzero) digits is 252000, while the sum is 40.

The square root of 275664505 is about 16603.1474425785. The cubic root of 275664505 is about 650.8190896884.

The spelling of 275664505 in words is "two hundred seventy-five million, six hundred sixty-four thousand, five hundred five".