2755231 has 2 divisors, whose sum is σ = 2755232. Its totient is φ = 2755230.

The previous prime is 2755223. The next prime is 2755237. The reversal of 2755231 is 1325572.

2755231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2755231 - 2³ = 2755223 is a prime.

It is a super-2 number, since 2×2755231² = 15182595726722, which contains 22 as substring.

2755231 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2755196 and 2755205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2755237) 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 as a sum of consecutive naturals, namely, 1377615 + 1377616.

It is an arithmetic number, because the mean of its divisors is an integer number (1377616).

2^2755231 is an apocalyptic number.

2755231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2755231 is an equidigital number, since it uses as much as digits as its factorization.

2755231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2100, while the sum is 25.

The square root of 2755231 is about 1659.8888517006. Note that the first 4 decimals coincide. The cubic root of 2755231 is about 140.1907434044.

The spelling of 2755231 in words is "two million, seven hundred fifty-five thousand, two hundred thirty-one".