2505531130 has 16 divisors (see below), whose sum is σ = 4513624200. Its totient is φ = 1001397312.

The previous prime is 2505531113. The next prime is 2505531143. The reversal of 2505531130 is 311355052.

It can be written as a sum of positive squares in 4 ways, for example, as 2499900001 + 5631129 = 49999^2 + 2373^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2505531095 and 2505531104.

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, 88905 + ... + 113644.

Almost surely, 2^2505531130 is an apocalyptic number.

2505531130 is a deficient number, since it is larger than the sum of its proper divisors (2008093070).

2505531130 is a wasteful number, since it uses less digits than its factorization.

2505531130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203793.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 2505531130 is about 50055.2807403974. The cubic root of 2505531130 is about 1358.2089908219.

Adding to 2505531130 its reverse (311355052), we get a palindrome (2816886182).

The spelling of 2505531130 in words is "two billion, five hundred five million, five hundred thirty-one thousand, one hundred thirty".