272506205 has 4 divisors (see below), whose sum is σ = 327007452. Its totient is φ = 218004960.

The previous prime is 272506193. The next prime is 272506211. The reversal of 272506205 is 502605272.

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 185885956 + 86620249 = 13634^2 + 9307^2 .

It is not a de Polignac number, because 272506205 - 2¹⁸ = 272244061 is a prime.

It is a Duffinian number.

It is a Curzon 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, 27250616 + ... + 27250625.

It is an arithmetic number, because the mean of its divisors is an integer number (81751863).

Almost surely, 2^272506205 is an apocalyptic number.

It is an amenable number.

272506205 is a deficient number, since it is larger than the sum of its proper divisors (54501247).

272506205 is an equidigital number, since it uses as much as digits as its factorization.

272506205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54501246.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 272506205 is about 16507.7619621801. The cubic root of 272506205 is about 648.3240493307.

The spelling of 272506205 in words is "two hundred seventy-two million, five hundred six thousand, two hundred five".