255213111 has 32 divisors (see below), whose sum is σ = 373811200. Its totient is φ = 154275840.

The previous prime is 255213097. The next prime is 255213113. The reversal of 255213111 is 111312552.

It is not a de Polignac number, because 255213111 - 2⁶ = 255213047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255213113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170655 + ... + 172143.

It is an arithmetic number, because the mean of its divisors is an integer number (11681600).

Almost surely, 2^255213111 is an apocalyptic number.

255213111 is a deficient number, since it is larger than the sum of its proper divisors (118598089).

255213111 is a wasteful number, since it uses less digits than its factorization.

255213111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639.

The product of its digits is 300, while the sum is 21.

The square root of 255213111 is about 15975.3907933421. The cubic root of 255213111 is about 634.3091757630.

Adding to 255213111 its reverse (111312552), we get a palindrome (366525663).

The spelling of 255213111 in words is "two hundred fifty-five million, two hundred thirteen thousand, one hundred eleven".