99453520 has 20 divisors (see below), whose sum is σ = 231229620. Its totient is φ = 39781376.

The previous prime is 99453517. The next prime is 99453533. The reversal of 99453520 is 2535499.

It can be written as a sum of positive squares in 2 ways, for example, as 22505536 + 76947984 = 4744^2 + 8772^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 99453520.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621505 + ... + 621664.

It is an arithmetic number, because the mean of its divisors is an integer number (11561481).

Almost surely, 2^99453520 is an apocalyptic number.

It is an amenable number.

99453520 is an abundant number, since it is smaller than the sum of its proper divisors (131776100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99453520 is a wasteful number, since it uses less digits than its factorization.

99453520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243182 (or 1243176 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 99453520 is about 9972.6385676009. The cubic root of 99453520 is about 463.3118266619.

The spelling of 99453520 in words is "ninety-nine million, four hundred fifty-three thousand, five hundred twenty".