99887602500 has 675 divisors, whose sum is σ = 376839265803. Its totient is φ = 22300488000.

The previous prime is 99887602487. The next prime is 99887602561. The reversal of 99887602500 is 520678899.

It is a happy number.

The square root of 99887602500 is 316050.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7831188036 + 92056414464 = 88494^2 + 303408^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 224 ways as a sum of consecutive naturals, for example, 2322967479 + ... + 2322967521.

Almost surely, 2^99887602500 is an apocalyptic number.

99887602500 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

99887602500 is the 316050-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99887602500

99887602500 is an abundant number, since it is smaller than the sum of its proper divisors (276951663303).

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

99887602500 is an equidigital number, since it uses as much as digits as its factorization.

99887602500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 99887602500 in words is "ninety-nine billion, eight hundred eighty-seven million, six hundred two thousand, five hundred".