201215255 has 4 divisors (see below), whose sum is σ = 241458312. Its totient is φ = 160972200.

The previous prime is 201215243. The next prime is 201215257. The reversal of 201215255 is 552512102.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 201215255 - 2⁶ = 201215191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201215255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201215257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20121521 + ... + 20121530.

It is an arithmetic number, because the mean of its divisors is an integer number (60364578).

Almost surely, 2^201215255 is an apocalyptic number.

201215255 is a deficient number, since it is larger than the sum of its proper divisors (40243057).

201215255 is an equidigital number, since it uses as much as digits as its factorization.

201215255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40243056.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 201215255 is about 14185.0363059105. The cubic root of 201215255 is about 585.9856323672.

Adding to 201215255 its reverse (552512102), we get a palindrome (753727357).

The spelling of 201215255 in words is "two hundred one million, two hundred fifteen thousand, two hundred fifty-five".