97221079005625 has 45 divisors (see below), whose sum is σ = 122354508404667. Its totient is φ = 77225685012000.

The previous prime is 97221079005587. The next prime is 97221079005697. The reversal of 97221079005625 is 52650097012279.

The square root of 97221079005625 is 9860075.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 96803933532201 + 417145473424 = 9838899^2 + 645868^2 .

It is not a de Polignac number, because 97221079005625 - 2¹¹ = 97221079003577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 36728778052 + ... + 36728780698.

Almost surely, 2^{97221079005625} is an apocalyptic number.

97221079005625 is the 9860075-th square number.

97221079005625 is the 4930038-th centered octagonal number.

It is an amenable number.

97221079005625 is a deficient number, since it is larger than the sum of its proper divisors (25133429399042).

97221079005625 is an frugal number, since it uses more digits than its factorization.

97221079005625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5612 (or 2801 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 55.

The spelling of 97221079005625 in words is "ninety-seven trillion, two hundred twenty-one billion, seventy-nine million, five thousand, six hundred twenty-five".