255124213 has 4 divisors (see below), whose sum is σ = 262019500. Its totient is φ = 248228928.

The previous prime is 255124193. The next prime is 255124241. The reversal of 255124213 is 312421552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 245925124 + 9199089 = 15682^2 + 3033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255124213 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 (255124313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3447588 + ... + 3447661.

It is an arithmetic number, because the mean of its divisors is an integer number (65504875).

Almost surely, 2^255124213 is an apocalyptic number.

It is an amenable number.

255124213 is a deficient number, since it is larger than the sum of its proper divisors (6895287).

255124213 is an equidigital number, since it uses as much as digits as its factorization.

255124213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6895286.

The product of its digits is 2400, while the sum is 25.

The square root of 255124213 is about 15972.6082090559. The cubic root of 255124213 is about 634.2355178888.

Adding to 255124213 its reverse (312421552), we get a palindrome (567545765).

The spelling of 255124213 in words is "two hundred fifty-five million, one hundred twenty-four thousand, two hundred thirteen".