2605530000 has 100 divisors (see below), whose sum is σ = 8411095088. Its totient is φ = 694800000.

The previous prime is 2605529987. The next prime is 2605530019. The reversal of 2605530000 is 355062.

2605530000 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (100).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13426 + ... + 73425.

Almost surely, 2^2605530000 is an apocalyptic number.

2605530000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2605530000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4205547544).

2605530000 is an abundant number, since it is smaller than the sum of its proper divisors (5805565088).

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

2605530000 is an equidigital number, since it uses as much as digits as its factorization.

2605530000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86882 (or 86861 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 2605530000 is about 51044.3924442245. The cubic root of 2605530000 is about 1376.0430652873.

Adding to 2605530000 its reverse (355062), we get a palindrome (2605885062).

The spelling of 2605530000 in words is "two billion, six hundred five million, five hundred thirty thousand".