255133213 has 8 divisors (see below), whose sum is σ = 264202200. Its totient is φ = 246082368.

The previous prime is 255133199. The next prime is 255133231. The reversal of 255133213 is 312331552.

255133213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 315844 + 254817369 = 562^2 + 15963^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255133213 - 2²⁵ = 221578781 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 (255133243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28195 + ... + 36127.

It is an arithmetic number, because the mean of its divisors is an integer number (33025275).

Almost surely, 2^255133213 is an apocalyptic number.

It is an amenable number.

255133213 is a deficient number, since it is larger than the sum of its proper divisors (9068987).

255133213 is a wasteful number, since it uses less digits than its factorization.

255133213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9071.

The product of its digits is 2700, while the sum is 25.

The square root of 255133213 is about 15972.8899388933. The cubic root of 255133213 is about 634.2429757626.

Adding to 255133213 its reverse (312331552), we get a palindrome (567464765).

The spelling of 255133213 in words is "two hundred fifty-five million, one hundred thirty-three thousand, two hundred thirteen".