255115211 has 4 divisors (see below), whose sum is σ = 274739472. Its totient is φ = 235490952.

The previous prime is 255115199. The next prime is 255115249. The reversal of 255115211 is 112511552.

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

It is a cyclic number.

It is not a de Polignac number, because 255115211 - 2¹⁰ = 255114187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255118211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9812111 + ... + 9812136.

It is an arithmetic number, because the mean of its divisors is an integer number (68684868).

Almost surely, 2^255115211 is an apocalyptic number.

255115211 is a deficient number, since it is larger than the sum of its proper divisors (19624261).

255115211 is a wasteful number, since it uses less digits than its factorization.

255115211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19624260.

The product of its digits is 500, while the sum is 23.

The square root of 255115211 is about 15972.3264116409. The cubic root of 255115211 is about 634.2280581822.

Adding to 255115211 its reverse (112511552), we get a palindrome (367626763).

The spelling of 255115211 in words is "two hundred fifty-five million, one hundred fifteen thousand, two hundred eleven".