829540425 has 48 divisors (see below), whose sum is σ = 1635609600. Its totient is φ = 362725440.

The previous prime is 829540423. The next prime is 829540451. The reversal of 829540425 is 524045928.

It is not a de Polignac number, because 829540425 - 2¹ = 829540423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (829540421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22275 + ... + 46424.

It is an arithmetic number, because the mean of its divisors is an integer number (34075200).

Almost surely, 2^829540425 is an apocalyptic number.

It is an amenable number.

829540425 is a deficient number, since it is larger than the sum of its proper divisors (806069175).

829540425 is a wasteful number, since it uses less digits than its factorization.

829540425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68742 (or 68737 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 829540425 is about 28801.7434368130. The cubic root of 829540425 is about 939.6061519667.

The spelling of 829540425 in words is "eight hundred twenty-nine million, five hundred forty thousand, four hundred twenty-five".