99855532 has 48 divisors (see below), whose sum is σ = 206785600. Its totient is φ = 42166656.

The previous prime is 99855529. The next prime is 99855533. The reversal of 99855532 is 23555899.

It is a super-2 number, since 2×99855532² = 19942254542006048, which contains 22 as substring.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (99855533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99658 + ... + 100654.

Almost surely, 2^99855532 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 99855532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103392800).

99855532 is an abundant number, since it is smaller than the sum of its proper divisors (106930068).

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

99855532 is a wasteful number, since it uses less digits than its factorization.

99855532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095 (or 1079 counting only the distinct ones).

The product of its digits is 486000, while the sum is 46.

The square root of 99855532 is about 9992.7739892384. The cubic root of 99855532 is about 463.9352552845.

The spelling of 99855532 in words is "ninety-nine million, eight hundred fifty-five thousand, five hundred thirty-two".