2605630530 has 16 divisors (see below), whose sum is σ = 6253513344. Its totient is φ = 694834800.

The previous prime is 2605630523. The next prime is 2605630549. The reversal of 2605630530 is 350365062.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 86854351 = 2605630530 / (2 + 6 + 0 + 5 + 6 + 3 + 0 + 5 + 3 + 0).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43427146 + ... + 43427205.

It is an arithmetic number, because the mean of its divisors is an integer number (390844584).

Almost surely, 2^2605630530 is an apocalyptic number.

2605630530 is an abundant number, since it is smaller than the sum of its proper divisors (3647882814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2605630530 is a wasteful number, since it uses less digits than its factorization.

2605630530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86854361.

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 2605630530 is about 51045.3771658120. The cubic root of 2605630530 is about 1376.0607624967.

Adding to 2605630530 its reverse (350365062), we get a palindrome (2955995592).

The spelling of 2605630530 in words is "two billion, six hundred five million, six hundred thirty thousand, five hundred thirty".