255843377 has 4 divisors (see below), whose sum is σ = 257537856. Its totient is φ = 254148900.

The previous prime is 255843361. The next prime is 255843389. The reversal of 255843377 is 773348552.

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 a cyclic number.

It is not a de Polignac number, because 255843377 - 2⁴ = 255843361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255843397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847013 + ... + 847314.

It is an arithmetic number, because the mean of its divisors is an integer number (64384464).

Almost surely, 2^255843377 is an apocalyptic number.

It is an amenable number.

255843377 is a deficient number, since it is larger than the sum of its proper divisors (1694479).

255843377 is a wasteful number, since it uses less digits than its factorization.

255843377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694478.

The product of its digits is 705600, while the sum is 44.

The square root of 255843377 is about 15995.1047824014. The cubic root of 255843377 is about 634.8309029563.

The spelling of 255843377 in words is "two hundred fifty-five million, eight hundred forty-three thousand, three hundred seventy-seven".