25315032130 has 16 divisors (see below), whose sum is σ = 45569111544. Its totient is φ = 10125556480.

The previous prime is 25315032103. The next prime is 25315032139. The reversal of 25315032130 is 3123051352.

It can be written as a sum of positive squares in 4 ways, for example, as 24913149921 + 401882209 = 157839^2 + 20047^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25315032095 and 25315032104.

It is not an unprimeable number, because it can be changed into a prime (25315032139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259644 + ... + 343576.

Almost surely, 2^25315032130 is an apocalyptic number.

25315032130 is a deficient number, since it is larger than the sum of its proper divisors (20254079414).

25315032130 is a wasteful number, since it uses less digits than its factorization.

25315032130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114101.

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

Adding to 25315032130 its reverse (3123051352), we get a palindrome (28438083482).

The spelling of 25315032130 in words is "twenty-five billion, three hundred fifteen million, thirty-two thousand, one hundred thirty".