213206255 has 16 divisors (see below), whose sum is σ = 265503744. Its totient is φ = 164240160.

The previous prime is 213206243. The next prime is 213206309. The reversal of 213206255 is 552602312.

It is not a de Polignac number, because 213206255 - 2¹⁰ = 213205231 is a prime.

It is a super-2 number, since 2×213206255² = 90913814342250050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8282 + ... + 22248.

It is an arithmetic number, because the mean of its divisors is an integer number (16593984).

Almost surely, 2^213206255 is an apocalyptic number.

213206255 is a deficient number, since it is larger than the sum of its proper divisors (52297489).

213206255 is a wasteful number, since it uses less digits than its factorization.

213206255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14086.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 213206255 is about 14601.5839894170. The cubic root of 213206255 is about 597.4019656740.

Adding to 213206255 its reverse (552602312), we get a palindrome (765808567).

The spelling of 213206255 in words is "two hundred thirteen million, two hundred six thousand, two hundred fifty-five".