255613022123 has 4 divisors (see below), whose sum is σ = 256522677288. Its totient is φ = 254703366960.

The previous prime is 255613022117. The next prime is 255613022179. The reversal of 255613022123 is 321220316552.

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

It is a cyclic number.

It is not a de Polignac number, because 255613022123 - 2¹² = 255613018027 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 255613022123.

It is not an unprimeable number, because it can be changed into a prime (255613022723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454827161 + ... + 454827722.

It is an arithmetic number, because the mean of its divisors is an integer number (64130669322).

Almost surely, 2^255613022123 is an apocalyptic number.

255613022123 is a deficient number, since it is larger than the sum of its proper divisors (909655165).

255613022123 is an equidigital number, since it uses as much as digits as its factorization.

255613022123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909655164.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 255613022123 its reverse (321220316552), we get a palindrome (576833338675).

The spelling of 255613022123 in words is "two hundred fifty-five billion, six hundred thirteen million, twenty-two thousand, one hundred twenty-three".