255055563 has 24 divisors (see below), whose sum is σ = 443206400. Its totient is φ = 138074544.

The previous prime is 255055553. The next prime is 255055589. The reversal of 255055563 is 365550552.

255055563 is a `hidden beast` number, since 2 + 550 + 55 + 56 + 3 = 666.

It is not a de Polignac number, because 255055563 - 2⁹ = 255055051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255055513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105343 + ... + 107736.

Almost surely, 2^255055563 is an apocalyptic number.

255055563 is a deficient number, since it is larger than the sum of its proper divisors (188150837).

255055563 is a wasteful number, since it uses less digits than its factorization.

255055563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213111 (or 213108 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 36.

The square root of 255055563 is about 15970.4590729259. The cubic root of 255055563 is about 634.1786251126.

The spelling of 255055563 in words is "two hundred fifty-five million, fifty-five thousand, five hundred sixty-three".