97725725825 has 24 divisors (see below), whose sum is σ = 149144495808. Its totient is φ = 61857161280.

The previous prime is 97725725791. The next prime is 97725725827. The reversal of 97725725825 is 52852752779.

It is a happy number.

It is not a de Polignac number, because 97725725825 - 2⁶ = 97725725761 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (97725725827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21475907 + ... + 21480456.

It is an arithmetic number, because the mean of its divisors is an integer number (6214353992).

Almost surely, 2^97725725825 is an apocalyptic number.

It is an amenable number.

97725725825 is a deficient number, since it is larger than the sum of its proper divisors (51418769983).

97725725825 is a wasteful number, since it uses less digits than its factorization.

97725725825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42956393 (or 42956388 counting only the distinct ones).

The product of its digits is 24696000, while the sum is 59.

The spelling of 97725725825 in words is "ninety-seven billion, seven hundred twenty-five million, seven hundred twenty-five thousand, eight hundred twenty-five".