2566353530 has 16 divisors (see below), whose sum is σ = 4974777864. Its totient is φ = 947576640.

The previous prime is 2566353529. The next prime is 2566353533. The reversal of 2566353530 is 353536652.

It can be written as a sum of positive squares in 4 ways, for example, as 2275957849 + 290395681 = 47707^2 + 17041^2 .

It is a super-3 number, since 3×2566353530³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2566353533) 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 7 ways as a sum of consecutive naturals, for example, 9870461 + ... + 9870720.

Almost surely, 2^2566353530 is an apocalyptic number.

2566353530 is a deficient number, since it is larger than the sum of its proper divisors (2408424334).

2566353530 is a wasteful number, since it uses less digits than its factorization.

2566353530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19741201.

The product of its (nonzero) digits is 243000, while the sum is 38.

The square root of 2566353530 is about 50659.1899856285. The cubic root of 2566353530 is about 1369.1115290011. Note that the first 3 decimals are identical.

The spelling of 2566353530 in words is "two billion, five hundred sixty-six million, three hundred fifty-three thousand, five hundred thirty".