5205663 has 6 divisors (see below), whose sum is σ = 7519304. Its totient is φ = 3470436.

The previous prime is 5205653. The next prime is 5205667. The reversal of 5205663 is 3665025.

It is not a de Polignac number, because 5205663 - 2⁸ = 5205407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5205667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 289195 + ... + 289212.

Almost surely, 2^5205663 is an apocalyptic number.

5205663 is a deficient number, since it is larger than the sum of its proper divisors (2313641).

5205663 is a wasteful number, since it uses less digits than its factorization.

5205663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578413 (or 578410 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 5205663 is about 2281.5922072097. The cubic root of 5205663 is about 173.3106894319.

The spelling of 5205663 in words is "five million, two hundred five thousand, six hundred sixty-three".