255403211 has 16 divisors (see below), whose sum is σ = 296809920. Its totient is φ = 215255040.

The previous prime is 255403199. The next prime is 255403219. The reversal of 255403211 is 112304552.

It is not a de Polignac number, because 255403211 - 2¹⁰ = 255402187 is a prime.

It is a super-2 number, since 2×255403211² = 130461600378221042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255403219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121691 + ... + 123771.

It is an arithmetic number, because the mean of its divisors is an integer number (18550620).

Almost surely, 2^255403211 is an apocalyptic number.

255403211 is a deficient number, since it is larger than the sum of its proper divisors (41406709).

255403211 is a wasteful number, since it uses less digits than its factorization.

255403211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2374.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 255403211 is about 15981.3394620101. The cubic root of 255403211 is about 634.4666288120.

Adding to 255403211 its reverse (112304552), we get a palindrome (367707763).

The spelling of 255403211 in words is "two hundred fifty-five million, four hundred three thousand, two hundred eleven".