97528075625 has 20 divisors (see below), whose sum is σ = 129039984612. Its totient is φ = 73432896000.

The previous prime is 97528075621. The next prime is 97528075679. The reversal of 97528075625 is 52657082579.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 28492089616 + 69035986009 = 168796^2 + 262747^2 .

It is not a de Polignac number, because 97528075625 - 2² = 97528075621 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97528075621) 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 19 ways as a sum of consecutive naturals, for example, 4578932 + ... + 4600181.

Almost surely, 2^97528075625 is an apocalyptic number.

It is an amenable number.

97528075625 is a deficient number, since it is larger than the sum of its proper divisors (31511908987).

97528075625 is an equidigital number, since it uses as much as digits as its factorization.

97528075625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9179150 (or 9179135 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 56.

The spelling of 97528075625 in words is "ninety-seven billion, five hundred twenty-eight million, seventy-five thousand, six hundred twenty-five".