206827225 has 24 divisors (see below), whose sum is σ = 287356608. Its totient is φ = 146347200.

The previous prime is 206827169. The next prime is 206827241. The reversal of 206827225 is 522728602.

It is a happy number.

It is not a de Polignac number, because 206827225 - 2¹⁹ = 206302937 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12 + ... + 20338.

It is an arithmetic number, because the mean of its divisors is an integer number (11973192).

Almost surely, 2^206827225 is an apocalyptic number.

206827225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206827225 is a deficient number, since it is larger than the sum of its proper divisors (80529383).

206827225 is a wasteful number, since it uses less digits than its factorization.

206827225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20385 (or 20380 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 206827225 is about 14381.4889702005. The cubic root of 206827225 is about 591.3835432652.

The spelling of 206827225 in words is "two hundred six million, eight hundred twenty-seven thousand, two hundred twenty-five".