2505530622 has 128 divisors (see below), whose sum is σ = 6244761600. Its totient is φ = 668273760.

The previous prime is 2505530611. The next prime is 2505530647. The reversal of 2505530622 is 2260355052.

It is a self number, because there is not a number n which added to its sum of digits gives 2505530622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2034747 + ... + 2035977.

It is an arithmetic number, because the mean of its divisors is an integer number (48787200).

Almost surely, 2^2505530622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2505530622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3122380800).

2505530622 is an abundant number, since it is smaller than the sum of its proper divisors (3739230978).

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

2505530622 is a wasteful number, since it uses less digits than its factorization.

2505530622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 2505530622 is about 50055.2756660075. The cubic root of 2505530622 is about 1358.2088990289.

Adding to 2505530622 its reverse (2260355052), we get a palindrome (4765885674).

The spelling of 2505530622 in words is "two billion, five hundred five million, five hundred thirty thousand, six hundred twenty-two".