2531130325 has 6 divisors (see below), whose sum is σ = 3138601634. Its totient is φ = 2024904240.

The previous prime is 2531130317. The next prime is 2531130379. The reversal of 2531130325 is 5230311352.

It can be written as a sum of positive squares in 3 ways, for example, as 902281444 + 1628848881 = 30038^2 + 40359^2 .

It is not a de Polignac number, because 2531130325 - 2³ = 2531130317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 101245213 = 2531130325 / (2 + 5 + 3 + 1 + 1 + 3 + 0 + 3 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2531130325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50622582 + ... + 50622631.

Almost surely, 2^2531130325 is an apocalyptic number.

2531130325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2531130325 is a deficient number, since it is larger than the sum of its proper divisors (607471309).

2531130325 is a wasteful number, since it uses less digits than its factorization.

2531130325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101245223 (or 101245218 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 2531130325 is about 50310.3401399752. The cubic root of 2531130325 is about 1362.8189663689.

Adding to 2531130325 its reverse (5230311352), we get a palindrome (7761441677).

The spelling of 2531130325 in words is "two billion, five hundred thirty-one million, one hundred thirty thousand, three hundred twenty-five".