201255505 has 48 divisors (see below), whose sum is σ = 288475200. Its totient is φ = 133297920.

The previous prime is 201255491. The next prime is 201255517. The reversal of 201255505 is 505552102.

It is a happy number.

It is not a de Polignac number, because 201255505 - 2⁵ = 201255473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201255505.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 878731 + ... + 878959.

It is an arithmetic number, because the mean of its divisors is an integer number (6009900).

Almost surely, 2^201255505 is an apocalyptic number.

It is an amenable number.

201255505 is a deficient number, since it is larger than the sum of its proper divisors (87219695).

201255505 is a wasteful number, since it uses less digits than its factorization.

201255505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 201255505 is about 14186.4549835398. The cubic root of 201255505 is about 586.0247022167.

The spelling of 201255505 in words is "two hundred one million, two hundred fifty-five thousand, five hundred five".