198057032825 has 6 divisors (see below), whose sum is σ = 245590720734. Its totient is φ = 158445626240.

The previous prime is 198057032779. The next prime is 198057032837. The reversal of 198057032825 is 528230750891.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 53392249 + 198003640576 = 7307^2 + 444976^2 .

It is not a de Polignac number, because 198057032825 - 2¹⁶ = 198056967289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3961140632 + ... + 3961140681.

It is an arithmetic number, because the mean of its divisors is an integer number (40931786789).

Almost surely, 2^198057032825 is an apocalyptic number.

It is an amenable number.

198057032825 is a deficient number, since it is larger than the sum of its proper divisors (47533687909).

198057032825 is an equidigital number, since it uses as much as digits as its factorization.

198057032825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7922281323 (or 7922281318 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 198057032825 in words is "one hundred ninety-eight billion, fifty-seven million, thirty-two thousand, eight hundred twenty-five".