8425205131 has 32 divisors (see below), whose sum is σ = 10318648320. Its totient is φ = 6718723200.

The previous prime is 8425205123. The next prime is 8425205143. The reversal of 8425205131 is 1315025248.

It is not a de Polignac number, because 8425205131 - 2³ = 8425205123 is a prime.

It is a super-2 number, since 2×8425205131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8425205093 and 8425205102.

It is not an unprimeable number, because it can be changed into a prime (8425205111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2614101 + ... + 2617321.

It is an arithmetic number, because the mean of its divisors is an integer number (322457760).

Almost surely, 2^8425205131 is an apocalyptic number.

8425205131 is a deficient number, since it is larger than the sum of its proper divisors (1893443189).

8425205131 is a wasteful number, since it uses less digits than its factorization.

8425205131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 8425205131 is about 91788.9161663869. The cubic root of 8425205131 is about 2034.8238900052.

The spelling of 8425205131 in words is "eight billion, four hundred twenty-five million, two hundred five thousand, one hundred thirty-one".