275555505 has 8 divisors (see below), whose sum is σ = 440888832. Its totient is φ = 146962928.

The previous prime is 275555491. The next prime is 275555513. The reversal of 275555505 is 505555572.

It is a happy number.

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 275555505 - 2¹¹ = 275553457 is a prime.

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, 9185169 + ... + 9185198.

It is an arithmetic number, because the mean of its divisors is an integer number (55111104).

Almost surely, 2^275555505 is an apocalyptic number.

It is an amenable number.

275555505 is a deficient number, since it is larger than the sum of its proper divisors (165333327).

275555505 is a wasteful number, since it uses less digits than its factorization.

275555505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18370375.

The product of its (nonzero) digits is 218750, while the sum is 39.

The square root of 275555505 is about 16599.8646078816. The cubic root of 275555505 is about 650.7332986495.

The spelling of 275555505 in words is "two hundred seventy-five million, five hundred fifty-five thousand, five hundred five".