8130725625 has 80 divisors (see below), whose sum is σ = 14827253760. Its totient is φ = 3929160000.

The previous prime is 8130725623. The next prime is 8130725633. The reversal of 8130725625 is 5265270318.

It is not a de Polignac number, because 8130725625 - 2¹ = 8130725623 is a prime.

It is a super-2 number, since 2×8130725625² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8130725623) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 9878964 + ... + 9879786.

It is an arithmetic number, because the mean of its divisors is an integer number (185340672).

Almost surely, 2^8130725625 is an apocalyptic number.

It is an amenable number.

8130725625 is a deficient number, since it is larger than the sum of its proper divisors (6696528135).

8130725625 is a wasteful number, since it uses less digits than its factorization.

8130725625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336 (or 1321 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 8130725625 is about 90170.5363464142. The cubic root of 8130725625 is about 2010.8349974981.

The spelling of 8130725625 in words is "eight billion, one hundred thirty million, seven hundred twenty-five thousand, six hundred twenty-five".