211125255 has 16 divisors (see below), whose sum is σ = 368509824. Its totient is φ = 102363680.

The previous prime is 211125251. The next prime is 211125263. The reversal of 211125255 is 552521112.

It is not a de Polignac number, because 211125255 - 2² = 211125251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211125251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639609 + ... + 639938.

It is an arithmetic number, because the mean of its divisors is an integer number (23031864).

Almost surely, 2^211125255 is an apocalyptic number.

211125255 is a deficient number, since it is larger than the sum of its proper divisors (157384569).

211125255 is a wasteful number, since it uses less digits than its factorization.

211125255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279566.

The product of its digits is 1000, while the sum is 24.

The square root of 211125255 is about 14530.1498615809. The cubic root of 211125255 is about 595.4519598802.

Adding to 211125255 its reverse (552521112), we get a palindrome (763646367).

The spelling of 211125255 in words is "two hundred eleven million, one hundred twenty-five thousand, two hundred fifty-five".