275505983 has 6 divisors (see below), whose sum is σ = 287567592. Its totient is φ = 263451320.

The previous prime is 275505973. The next prime is 275506001. The reversal of 275505983 is 389505572.

It is not a de Polignac number, because 275505983 - 2¹⁶ = 275440447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275505973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77873 + ... + 81333.

It is an arithmetic number, because the mean of its divisors is an integer number (47927932).

Almost surely, 2^275505983 is an apocalyptic number.

275505983 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

275505983 is a deficient number, since it is larger than the sum of its proper divisors (12061609).

275505983 is an frugal number, since it uses more digits than its factorization.

275505983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6945 (or 3484 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 44.

The square root of 275505983 is about 16598.3729021853. The cubic root of 275505983 is about 650.6943137087.

It can be divided in two parts, 27550 and 5983, that added together give a palindrome (33533).

The spelling of 275505983 in words is "two hundred seventy-five million, five hundred five thousand, nine hundred eighty-three".