255226787 has 4 divisors (see below), whose sum is σ = 255296496. Its totient is φ = 255157080.

The previous prime is 255226781. The next prime is 255226789. The reversal of 255226787 is 787622552.

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

It is a cyclic number.

It is not a de Polignac number, because 255226787 - 2⁴ = 255226771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255226781) 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, 29039 + ... + 36792.

It is an arithmetic number, because the mean of its divisors is an integer number (63824124).

Almost surely, 2^255226787 is an apocalyptic number.

255226787 is a deficient number, since it is larger than the sum of its proper divisors (69709).

255226787 is an equidigital number, since it uses as much as digits as its factorization.

255226787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69708.

The product of its digits is 470400, while the sum is 44.

The square root of 255226787 is about 15975.8188209556. The cubic root of 255226787 is about 634.3205057155.

The spelling of 255226787 in words is "two hundred fifty-five million, two hundred twenty-six thousand, seven hundred eighty-seven".