275480005 has 4 divisors (see below), whose sum is σ = 330576012. Its totient is φ = 220384000.

The previous prime is 275479999. The next prime is 275480041. The reversal of 275480005 is 500084572.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 214358881 + 61121124 = 14641^2 + 7818^2 .

It is not a de Polignac number, because 275480005 - 2⁷ = 275479877 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27547996 + ... + 27548005.

It is an arithmetic number, because the mean of its divisors is an integer number (82644003).

Almost surely, 2^275480005 is an apocalyptic number.

It is an amenable number.

275480005 is a deficient number, since it is larger than the sum of its proper divisors (55096007).

275480005 is an equidigital number, since it uses as much as digits as its factorization.

275480005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55096006.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 275480005 is about 16597.5903371544. The cubic root of 275480005 is about 650.6738613178.

The spelling of 275480005 in words is "two hundred seventy-five million, four hundred eighty thousand, five".