255289163 has 4 divisors (see below), whose sum is σ = 255441648. Its totient is φ = 255136680.

The previous prime is 255289157. The next prime is 255289171. The reversal of 255289163 is 361982552.

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 255289163 - 2⁸ = 255288907 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 255289163.

It is not an unprimeable number, because it can be changed into a prime (255280163) 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, 73703 + ... + 77088.

It is an arithmetic number, because the mean of its divisors is an integer number (63860412).

Almost surely, 2^255289163 is an apocalyptic number.

255289163 is a deficient number, since it is larger than the sum of its proper divisors (152485).

255289163 is a wasteful number, since it uses less digits than its factorization.

255289163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152484.

The product of its digits is 129600, while the sum is 41.

The square root of 255289163 is about 15977.7709021002. The cubic root of 255289163 is about 634.3721763017.

The spelling of 255289163 in words is "two hundred fifty-five million, two hundred eighty-nine thousand, one hundred sixty-three".