565656003 has 18 divisors (see below), whose sum is σ = 898091012. Its totient is φ = 342821160.

The previous prime is 565655971. The next prime is 565656017. The reversal of 565656003 is 300656565.

It is a happy number.

It is not a de Polignac number, because 565656003 - 2⁵ = 565655971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (565656073) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 258625 + ... + 260802.

Almost surely, 2^565656003 is an apocalyptic number.

565656003 is a deficient number, since it is larger than the sum of its proper divisors (332435009).

565656003 is a wasteful number, since it uses less digits than its factorization.

565656003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519455 (or 519441 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 565656003 is about 23783.5237717206. The cubic root of 565656003 is about 827.0227697679.

The spelling of 565656003 in words is "five hundred sixty-five million, six hundred fifty-six thousand, three".