272511261 has 12 divisors (see below), whose sum is σ = 429411840. Its totient is φ = 165158280.

The previous prime is 272511251. The next prime is 272511329. The reversal of 272511261 is 162115272.

It is not a de Polignac number, because 272511261 - 2⁵ = 272511229 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272511251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1376221 + ... + 1376418.

It is an arithmetic number, because the mean of its divisors is an integer number (35784320).

Almost surely, 2^272511261 is an apocalyptic number.

It is an amenable number.

272511261 is a deficient number, since it is larger than the sum of its proper divisors (156900579).

272511261 is a wasteful number, since it uses less digits than its factorization.

272511261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752656 (or 2752653 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 272511261 is about 16507.9151015505. The cubic root of 272511261 is about 648.3280589105.

The spelling of 272511261 in words is "two hundred seventy-two million, five hundred eleven thousand, two hundred sixty-one".