99452560321 has 3 divisors (see below), whose sum is σ = 99452875683. Its totient is φ = 99452244960.

The previous prime is 99452560313. The next prime is 99452560457. The reversal of 99452560321 is 12306525499.

The square root of 99452560321 is 315361.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 3154057921 + 96298502400 = 56161^2 + 310320^2 .

It is not a de Polignac number, because 99452560321 - 2³ = 99452560313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99452563321) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 157681 + ... + 473041.

It is an arithmetic number, because the mean of its divisors is an integer number (33150958561).

Almost surely, 2^99452560321 is an apocalyptic number.

99452560321 is the 315361-st square number.

99452560321 is the 157681-st centered octagonal number.

It is an amenable number.

99452560321 is a deficient number, since it is larger than the sum of its proper divisors (315362).

99452560321 is an frugal number, since it uses more digits than its factorization.

99452560321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630722 (or 315361 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 99452560321 in words is "ninety-nine billion, four hundred fifty-two million, five hundred sixty thousand, three hundred twenty-one".