99522500 has 180 divisors, whose sum is σ = 279210624. Its totient is φ = 30360000.

The previous prime is 99522491. The next prime is 99522509. The reversal of 99522500 is 522599.

It is an interprime number because it is at equal distance from previous prime (99522491) and next prime (99522509).

It is not an unprimeable number, because it can be changed into a prime (99522509) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2117477 + ... + 2117523.

Almost surely, 2^99522500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99522500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139605312).

99522500 is an abundant number, since it is smaller than the sum of its proper divisors (179688124).

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

99522500 is a wasteful number, since it uses less digits than its factorization.

99522500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 99522500 is about 9976.0964309694. The cubic root of 99522500 is about 463.4189181078.

The spelling of 99522500 in words is "ninety-nine million, five hundred twenty-two thousand, five hundred".