99999552 has 112 divisors (see below), whose sum is σ = 279148032. Its totient is φ = 31549440.

The previous prime is 99999551. The next prime is 99999563. The reversal of 99999552 is 25599999.

It is a super-3 number, since 3×99999552³ (a number of 25 digits) contains 333 as substring.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 99999492 and 99999501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99999551) 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, 315298 + ... + 315614.

Almost surely, 2^99999552 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 99999552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139574016).

99999552 is an abundant number, since it is smaller than the sum of its proper divisors (179148480).

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

99999552 is a wasteful number, since it uses less digits than its factorization.

99999552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 406 counting only the distinct ones).

The product of its digits is 2952450, while the sum is 57.

The square root of 99999552 is about 9999.9775999749. The cubic root of 99999552 is about 464.1581902163.

The spelling of 99999552 in words is "ninety-nine million, nine hundred ninety-nine thousand, five hundred fifty-two".