255120253313 has 4 divisors (see below), whose sum is σ = 255428742960. Its totient is φ = 254811763668.

The previous prime is 255120253309. The next prime is 255120253337. The reversal of 255120253313 is 313352021552.

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 not a de Polignac number, because 255120253313 - 2² = 255120253309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255120253313.

It is not an unprimeable number, because it can be changed into a prime (255120253373) 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, 154243583 + ... + 154245236.

It is an arithmetic number, because the mean of its divisors is an integer number (63857185740).

Almost surely, 2^255120253313 is an apocalyptic number.

It is an amenable number.

255120253313 is a deficient number, since it is larger than the sum of its proper divisors (308489647).

255120253313 is an equidigital number, since it uses as much as digits as its factorization.

255120253313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308489646.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 255120253313 its reverse (313352021552), we get a palindrome (568472274865).

The spelling of 255120253313 in words is "two hundred fifty-five billion, one hundred twenty million, two hundred fifty-three thousand, three hundred thirteen".