255243063 has 4 divisors (see below), whose sum is σ = 340324088. Its totient is φ = 170162040.

The previous prime is 255243047. The next prime is 255243067. The reversal of 255243063 is 360342552.

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

It is not a de Polignac number, because 255243063 - 2⁴ = 255243047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255243063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255243067) 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, 42540508 + ... + 42540513.

It is an arithmetic number, because the mean of its divisors is an integer number (85081022).

Almost surely, 2^255243063 is an apocalyptic number.

255243063 is a deficient number, since it is larger than the sum of its proper divisors (85081025).

255243063 is an equidigital number, since it uses as much as digits as its factorization.

255243063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85081024.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 255243063 is about 15976.3282076953. The cubic root of 255243063 is about 634.3339891241. Note that the first 3 decimals are identical.

The spelling of 255243063 in words is "two hundred fifty-five million, two hundred forty-three thousand, sixty-three".