2530565605 has 16 divisors (see below), whose sum is σ = 3149653104. Its totient is φ = 1950220800.

The previous prime is 2530565603. The next prime is 2530565623. The reversal of 2530565605 is 5065650352.

It can be written as a sum of positive squares in 8 ways, for example, as 1388531169 + 1142034436 = 37263^2 + 33794^2 .

It is not a de Polignac number, because 2530565605 - 2¹ = 2530565603 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

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, 49032 + ... + 86401.

It is an arithmetic number, because the mean of its divisors is an integer number (196853319).

Almost surely, 2^2530565605 is an apocalyptic number.

It is an amenable number.

2530565605 is a deficient number, since it is larger than the sum of its proper divisors (619087499).

2530565605 is a wasteful number, since it uses less digits than its factorization.

2530565605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135576.

The product of its (nonzero) digits is 135000, while the sum is 37.

The square root of 2530565605 is about 50304.7274617406. The cubic root of 2530565605 is about 1362.7176060712.

The spelling of 2530565605 in words is "two billion, five hundred thirty million, five hundred sixty-five thousand, six hundred five".