275025505 has 4 divisors (see below), whose sum is σ = 330030612. Its totient is φ = 220020400.

The previous prime is 275025497. The next prime is 275025523. The reversal of 275025505 is 505520572.

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 73839649 + 201185856 = 8593^2 + 14184^2 .

It is not a de Polignac number, because 275025505 - 2³ = 275025497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27502546 + ... + 27502555.

It is an arithmetic number, because the mean of its divisors is an integer number (82507653).

Almost surely, 2^275025505 is an apocalyptic number.

It is an amenable number.

275025505 is a deficient number, since it is larger than the sum of its proper divisors (55005107).

275025505 is an equidigital number, since it uses as much as digits as its factorization.

275025505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55005106.

The product of its (nonzero) digits is 17500, while the sum is 31.

The square root of 275025505 is about 16583.8929386317. The cubic root of 275025505 is about 650.3158267950.

The spelling of 275025505 in words is "two hundred seventy-five million, twenty-five thousand, five hundred five".