99442100250 has 384 divisors, whose sum is σ = 296780440320. Its totient is φ = 24844320000.

The previous prime is 99442100243. The next prime is 99442100267. The reversal of 99442100250 is 5200124499.

99442100250 is a `hidden beast` number, since 99 + 442 + 100 + 25 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 116578824 + ... + 116579676.

It is an arithmetic number, because the mean of its divisors is an integer number (772865730).

Almost surely, 2^99442100250 is an apocalyptic number.

99442100250 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 99442100250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148390220160).

99442100250 is an abundant number, since it is smaller than the sum of its proper divisors (197338340070).

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

99442100250 is a wasteful number, since it uses less digits than its factorization.

99442100250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 99442100250 in words is "ninety-nine billion, four hundred forty-two million, one hundred thousand, two hundred fifty".