255363565 has 8 divisors (see below), whose sum is σ = 309248280. Its totient is φ = 202416192.

The previous prime is 255363557. The next prime is 255363587. The reversal of 255363565 is 565363552.

It can be written as a sum of positive squares in 4 ways, for example, as 1503076 + 253860489 = 1226^2 + 15933^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 255363565 - 2³ = 255363557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233734 + ... + 234823.

It is an arithmetic number, because the mean of its divisors is an integer number (38656035).

Almost surely, 2^255363565 is an apocalyptic number.

It is an amenable number.

255363565 is a deficient number, since it is larger than the sum of its proper divisors (53884715).

255363565 is a wasteful number, since it uses less digits than its factorization.

255363565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468671.

The product of its digits is 405000, while the sum is 40.

The square root of 255363565 is about 15980.0990297307. The cubic root of 255363565 is about 634.4337978940.

The spelling of 255363565 in words is "two hundred fifty-five million, three hundred sixty-three thousand, five hundred sixty-five".