2530565663 has 16 divisors (see below), whose sum is σ = 2601589440. Its totient is φ = 2460672000.

The previous prime is 2530565657. The next prime is 2530565693. The reversal of 2530565663 is 3665650352.

It is a cyclic number.

It is not a de Polignac number, because 2530565663 - 2¹⁸ = 2530303519 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 2530565663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530565603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2366693 + ... + 2367761.

It is an arithmetic number, because the mean of its divisors is an integer number (162599340).

Almost surely, 2^2530565663 is an apocalyptic number.

2530565663 is a deficient number, since it is larger than the sum of its proper divisors (71023777).

2530565663 is a wasteful number, since it uses less digits than its factorization.

2530565663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538.

The product of its (nonzero) digits is 486000, while the sum is 41.

The square root of 2530565663 is about 50304.7280382272. The cubic root of 2530565663 is about 1362.7176164822.

The spelling of 2530565663 in words is "two billion, five hundred thirty million, five hundred sixty-five thousand, six hundred sixty-three".