205943225 has 6 divisors (see below), whose sum is σ = 255369630. Its totient is φ = 164754560.

The previous prime is 205943207. The next prime is 205943233. The reversal of 205943225 is 522349502.

205943225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 24960016 + 180983209 = 4996^2 + 13453^2 .

It is not a de Polignac number, because 205943225 - 2⁶ = 205943161 is a prime.

It is a super-2 number, since 2×205943225² = 84825223846801250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 205943191 and 205943200.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4118840 + ... + 4118889.

It is an arithmetic number, because the mean of its divisors is an integer number (42561605).

Almost surely, 2^205943225 is an apocalyptic number.

205943225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205943225 is a deficient number, since it is larger than the sum of its proper divisors (49426405).

205943225 is an equidigital number, since it uses as much as digits as its factorization.

205943225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8237739 (or 8237734 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 205943225 is about 14350.7221072669. The cubic root of 205943225 is about 590.5397961317.

The spelling of 205943225 in words is "two hundred five million, nine hundred forty-three thousand, two hundred twenty-five".