255662663 has 4 divisors (see below), whose sum is σ = 256947600. Its totient is φ = 254377728.

The previous prime is 255662653. The next prime is 255662683. The reversal of 255662663 is 366266552.

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 255662663 - 2⁴ = 255662647 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 255662663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255662623) 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, 642170 + ... + 642567.

It is an arithmetic number, because the mean of its divisors is an integer number (64236900).

Almost surely, 2^255662663 is an apocalyptic number.

255662663 is a deficient number, since it is larger than the sum of its proper divisors (1284937).

255662663 is a wasteful number, since it uses less digits than its factorization.

255662663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284936.

The product of its digits is 388800, while the sum is 41.

The square root of 255662663 is about 15989.4547436740. The cubic root of 255662663 is about 634.6813976156.

The spelling of 255662663 in words is "two hundred fifty-five million, six hundred sixty-two thousand, six hundred sixty-three".