212304255 has 16 divisors (see below), whose sum is σ = 339869184. Its totient is φ = 113168160.

The previous prime is 212304229. The next prime is 212304259. The reversal of 212304255 is 552403212.

It is not a de Polignac number, because 212304255 - 2⁸ = 212303999 is a prime.

It is a super-2 number, since 2×212304255² = 90146193382210050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212304259) 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, 46902 + ... + 51228.

It is an arithmetic number, because the mean of its divisors is an integer number (21241824).

Almost surely, 2^212304255 is an apocalyptic number.

212304255 is a deficient number, since it is larger than the sum of its proper divisors (127564929).

212304255 is a wasteful number, since it uses less digits than its factorization.

212304255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7606.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 212304255 is about 14570.6641921362. The cubic root of 212304255 is about 596.5583095818.

Adding to 212304255 its reverse (552403212), we get a palindrome (764707467).

The spelling of 212304255 in words is "two hundred twelve million, three hundred four thousand, two hundred fifty-five".