198951552 has 160 divisors (see below), whose sum is σ = 612163200. Its totient is φ = 64074240.

The previous prime is 198951551. The next prime is 198951601. The reversal of 198951552 is 255159891.

198951552 is a `hidden beast` number, since 1 + 9 + 8 + 95 + 1 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 198951498 and 198951507.

It is not an unprimeable number, because it can be changed into a prime (198951551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 321099 + ... + 321717.

It is an arithmetic number, because the mean of its divisors is an integer number (3826020).

Almost surely, 2^198951552 is an apocalyptic number.

198951552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198951552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306081600).

198951552 is an abundant number, since it is smaller than the sum of its proper divisors (413211648).

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

198951552 is an equidigital number, since it uses as much as digits as its factorization.

198951552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 655 counting only the distinct ones).

The product of its digits is 162000, while the sum is 45.

The square root of 198951552 is about 14105.0186813063. The cubic root of 198951552 is about 583.7798632369.

The spelling of 198951552 in words is "one hundred ninety-eight million, nine hundred fifty-one thousand, five hundred fifty-two".