255778113 has 4 divisors (see below), whose sum is σ = 341037488. Its totient is φ = 170518740.

The previous prime is 255778111. The next prime is 255778153. The reversal of 255778113 is 311877552.

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 not a de Polignac number, because 255778113 - 2¹ = 255778111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255778111) 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, 42629683 + ... + 42629688.

It is an arithmetic number, because the mean of its divisors is an integer number (85259372).

Almost surely, 2^255778113 is an apocalyptic number.

It is an amenable number.

255778113 is a deficient number, since it is larger than the sum of its proper divisors (85259375).

255778113 is an equidigital number, since it uses as much as digits as its factorization.

255778113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85259374.

The product of its digits is 58800, while the sum is 39.

The square root of 255778113 is about 15993.0645281009. The cubic root of 255778113 is about 634.7769179388.

The spelling of 255778113 in words is "two hundred fifty-five million, seven hundred seventy-eight thousand, one hundred thirteen".