255612213245 has 4 divisors (see below), whose sum is σ = 306734655900. Its totient is φ = 204489770592.

The previous prime is 255612213209. The next prime is 255612213271. The reversal of 255612213245 is 542312216552.

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 56573098201 + 199039115044 = 237851^2 + 446138^2 .

It is a cyclic number.

It is not a de Polignac number, because 255612213245 - 2¹⁶ = 255612147709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255612213199 and 255612213208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25561221320 + ... + 25561221329.

It is an arithmetic number, because the mean of its divisors is an integer number (76683663975).

Almost surely, 2^255612213245 is an apocalyptic number.

It is an amenable number.

255612213245 is a deficient number, since it is larger than the sum of its proper divisors (51122442655).

255612213245 is an equidigital number, since it uses as much as digits as its factorization.

255612213245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51122442654.

The product of its digits is 144000, while the sum is 38.

Adding to 255612213245 its reverse (542312216552), we get a palindrome (797924429797).

The spelling of 255612213245 in words is "two hundred fifty-five billion, six hundred twelve million, two hundred thirteen thousand, two hundred forty-five".