205575273 has 16 divisors (see below), whose sum is σ = 305666560. Its totient is φ = 136550448.

The previous prime is 205575263. The next prime is 205575277. The reversal of 205575273 is 372575502.

It is a happy number.

It is not a de Polignac number, because 205575273 - 2¹⁰ = 205574249 is a prime.

It is a super-2 number, since 2×205575273² = 84522385738049058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205575277) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6265 + ... + 21222.

It is an arithmetic number, because the mean of its divisors is an integer number (19104160).

Almost surely, 2^205575273 is an apocalyptic number.

It is an amenable number.

205575273 is a deficient number, since it is larger than the sum of its proper divisors (100091287).

205575273 is a wasteful number, since it uses less digits than its factorization.

205575273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27773 (or 27767 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 36.

The square root of 205575273 is about 14337.8963938229. The cubic root of 205575273 is about 590.1878871106.

The spelling of 205575273 in words is "two hundred five million, five hundred seventy-five thousand, two hundred seventy-three".