201225055 has 16 divisors (see below), whose sum is σ = 256554720. Its totient is φ = 151224192.

The previous prime is 201225049. The next prime is 201225071. The reversal of 201225055 is 550522102.

It is a cyclic number.

It is not a de Polignac number, because 201225055 - 2⁷ = 201224927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13389 + ... + 24118.

It is an arithmetic number, because the mean of its divisors is an integer number (16034670).

Almost surely, 2^201225055 is an apocalyptic number.

201225055 is a deficient number, since it is larger than the sum of its proper divisors (55329665).

201225055 is a wasteful number, since it uses less digits than its factorization.

201225055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37578.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 201225055 is about 14185.3817361395. The cubic root of 201225055 is about 585.9951455060.

Adding to 201225055 its reverse (550522102), we get a palindrome (751747157).

The spelling of 201225055 in words is "two hundred one million, two hundred twenty-five thousand, fifty-five".