255012779313 has 24 divisors (see below), whose sum is σ = 388751201280. Its totient is φ = 160640137440.

The previous prime is 255012779309. The next prime is 255012779317. The reversal of 255012779313 is 313977210552.

255012779313 is a `hidden beast` number, since 2 + 550 + 1 + 2 + 7 + 7 + 93 + 1 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (255012779309) and next prime (255012779317).

It is not a de Polignac number, because 255012779313 - 2² = 255012779309 is a prime.

It is a super-2 number, since 2×255012779313² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255012779317) 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 23 ways as a sum of consecutive naturals, for example, 1881378 + ... + 2012363.

It is an arithmetic number, because the mean of its divisors is an integer number (16197966720).

Almost surely, 2^255012779313 is an apocalyptic number.

It is an amenable number.

255012779313 is a deficient number, since it is larger than the sum of its proper divisors (133738421967).

255012779313 is a wasteful number, since it uses less digits than its factorization.

255012779313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894149 (or 3894146 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 45.

Adding to 255012779313 its reverse (313977210552), we get a palindrome (568989989865).

The spelling of 255012779313 in words is "two hundred fifty-five billion, twelve million, seven hundred seventy-nine thousand, three hundred thirteen".