2505530620 has 24 divisors (see below), whose sum is σ = 5312702304. Its totient is φ = 992481216.

The previous prime is 2505530611. The next prime is 2505530647. The reversal of 2505530620 is 260355052.

It is a congruent number.

It is an unprimeable number.

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, 606079 + ... + 610198.

It is an arithmetic number, because the mean of its divisors is an integer number (221362596).

Almost surely, 2^2505530620 is an apocalyptic number.

2505530620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2505530620 is an abundant number, since it is smaller than the sum of its proper divisors (2807171684).

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

2505530620 is a wasteful number, since it uses less digits than its factorization.

2505530620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216389 (or 1216387 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 2505530620 is about 50055.2756460296. The cubic root of 2505530620 is about 1358.2088986675.

Adding to 2505530620 its reverse (260355052), we get a palindrome (2765885672).

The spelling of 2505530620 in words is "two billion, five hundred five million, five hundred thirty thousand, six hundred twenty".