201955225 has 6 divisors (see below), whose sum is σ = 250424510. Its totient is φ = 161564160.

The previous prime is 201955153. The next prime is 201955241. The reversal of 201955225 is 522559102.

It can be written as a sum of positive squares in 3 ways, for example, as 2704 + 201952521 = 52^2 + 14211^2 .

It is not a de Polignac number, because 201955225 - 2¹¹ = 201953177 is a prime.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 4039080 + ... + 4039129.

Almost surely, 2^201955225 is an apocalyptic number.

201955225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201955225 is a deficient number, since it is larger than the sum of its proper divisors (48469285).

201955225 is an equidigital number, since it uses as much as digits as its factorization.

201955225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8078219 (or 8078214 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 201955225 is about 14211.0951372510. The cubic root of 201955225 is about 586.7030752126.

The spelling of 201955225 in words is "two hundred one million, nine hundred fifty-five thousand, two hundred twenty-five".