255210013 has 4 divisors (see below), whose sum is σ = 255348288. Its totient is φ = 255071740.

The previous prime is 255209963. The next prime is 255210017. The reversal of 255210013 is 310012552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255210013 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 (255210017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66331 + ... + 70072.

It is an arithmetic number, because the mean of its divisors is an integer number (63837072).

Almost surely, 2^255210013 is an apocalyptic number.

It is an amenable number.

255210013 is a deficient number, since it is larger than the sum of its proper divisors (138275).

255210013 is a wasteful number, since it uses less digits than its factorization.

255210013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138274.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 255210013 is about 15975.2938314136. The cubic root of 255210013 is about 634.3066091527.

Adding to 255210013 its reverse (310012552), we get a palindrome (565222565).

The spelling of 255210013 in words is "two hundred fifty-five million, two hundred ten thousand, thirteen".