255345563 has 16 divisors (see below), whose sum is σ = 291900672. Its totient is φ = 221100000.

The previous prime is 255345553. The next prime is 255345577. The reversal of 255345563 is 365543552.

It is a de Polignac number, because none of the positive numbers 2^k-255345563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255345533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61493 + ... + 65513.

It is an arithmetic number, because the mean of its divisors is an integer number (18243792).

Almost surely, 2^255345563 is an apocalyptic number.

255345563 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

255345563 is a deficient number, since it is larger than the sum of its proper divisors (36555109).

255345563 is a wasteful number, since it uses less digits than its factorization.

255345563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4306.

The product of its digits is 270000, while the sum is 38.

The square root of 255345563 is about 15979.5357567108. The cubic root of 255345563 is about 634.4188892863.

The spelling of 255345563 in words is "two hundred fifty-five million, three hundred forty-five thousand, five hundred sixty-three".