255283387 has 4 divisors (see below), whose sum is σ = 262182976. Its totient is φ = 248383800.

The previous prime is 255283361. The next prime is 255283393. The reversal of 255283387 is 783382552.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255283387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255283397) 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, 3449739 + ... + 3449812.

It is an arithmetic number, because the mean of its divisors is an integer number (65545744).

Almost surely, 2^255283387 is an apocalyptic number.

255283387 is a deficient number, since it is larger than the sum of its proper divisors (6899589).

255283387 is an equidigital number, since it uses as much as digits as its factorization.

255283387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6899588.

The product of its digits is 403200, while the sum is 43.

The square root of 255283387 is about 15977.5901499569. The cubic root of 255283387 is about 634.3673919736.

The spelling of 255283387 in words is "two hundred fifty-five million, two hundred eighty-three thousand, three hundred eighty-seven".