99925028 has 96 divisors (see below), whose sum is σ = 222781440. Its totient is φ = 38257920.

The previous prime is 99925027. The next prime is 99925037. The reversal of 99925028 is 82052999.

It is a super-2 number, since 2×99925028² = 19970022441601568, which contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 99925028.

It is not an unprimeable number, because it can be changed into a prime (99925027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1203875 + ... + 1203957.

It is an arithmetic number, because the mean of its divisors is an integer number (2320640).

Almost surely, 2^99925028 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 99925028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111390720).

99925028 is an abundant number, since it is smaller than the sum of its proper divisors (122856412).

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

99925028 is a wasteful number, since it uses less digits than its factorization.

99925028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 99925028 is about 9996.2506971364. The cubic root of 99925028 is about 464.0428579616.

The spelling of 99925028 in words is "ninety-nine million, nine hundred twenty-five thousand, twenty-eight".