255544563 has 8 divisors (see below), whose sum is σ = 351717376. Its totient is φ = 164867400.

The previous prime is 255544519. The next prime is 255544577. The reversal of 255544563 is 365445552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255544563 - 2²⁰ = 254495987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255544063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1373803 + ... + 1373988.

It is an arithmetic number, because the mean of its divisors is an integer number (43964672).

Almost surely, 2^255544563 is an apocalyptic number.

255544563 is a deficient number, since it is larger than the sum of its proper divisors (96172813).

255544563 is a wasteful number, since it uses less digits than its factorization.

255544563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747825.

The product of its digits is 360000, while the sum is 39.

The square root of 255544563 is about 15985.7612580696. The cubic root of 255544563 is about 634.5836549928.

The spelling of 255544563 in words is "two hundred fifty-five million, five hundred forty-four thousand, five hundred sixty-three".