255814779 has 8 divisors (see below), whose sum is σ = 372094272. Its totient is φ = 155039240.

The previous prime is 255814753. The next prime is 255814831. The reversal of 255814779 is 977418552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255814779 - 2⁸ = 255814523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255814379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3875949 + ... + 3876014.

It is an arithmetic number, because the mean of its divisors is an integer number (46511784).

Almost surely, 2^255814779 is an apocalyptic number.

255814779 is a deficient number, since it is larger than the sum of its proper divisors (116279493).

255814779 is a wasteful number, since it uses less digits than its factorization.

255814779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7751977.

The product of its digits is 705600, while the sum is 48.

The square root of 255814779 is about 15994.2107964101. The cubic root of 255814779 is about 634.8072484183.

The spelling of 255814779 in words is "two hundred fifty-five million, eight hundred fourteen thousand, seven hundred seventy-nine".