99020355625 has 45 divisors (see below), whose sum is σ = 127241856291. Its totient is φ = 77032440000.

The previous prime is 99020355569. The next prime is 99020355647. The reversal of 99020355625 is 52655302099.

The square root of 99020355625 is 314675.

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 98634311721 + 386043904 = 314061^2 + 19648^2 .

It is not a de Polignac number, because 99020355625 - 2²⁹ = 98483484713 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, 322541722 + ... + 322542028.

Almost surely, 2^99020355625 is an apocalyptic number.

99020355625 is the 314675-th square number.

99020355625 is the 157338-th centered octagonal number.

It is an amenable number.

99020355625 is a deficient number, since it is larger than the sum of its proper divisors (28221500666).

99020355625 is an frugal number, since it uses more digits than its factorization.

99020355625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 46.

The spelling of 99020355625 in words is "ninety-nine billion, twenty million, three hundred fifty-five thousand, six hundred twenty-five".